CultureInfo 類別

定義

提供有關特定文化特性 (Culture) 的資訊 (文化特性在 Unmanaged 程式碼開發中稱為「地區設定」)。Provides information about a specific culture (called a locale for unmanaged code development). 這項資訊包含文化特性的名稱、書寫系統、使用的曆法、字串的排序次序,以及日期和數字的格式。The information includes the names for the culture, the writing system, the calendar used, the sort order of strings, and formatting for dates and numbers.

public ref class CultureInfo : ICloneable, IFormatProvider
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class CultureInfo : ICloneable, IFormatProvider
type CultureInfo = class
    interface ICloneable
    interface IFormatProvider
Public Class CultureInfo
Implements ICloneable, IFormatProvider
繼承
CultureInfo
屬性
實作

範例

下列範例示範如何使用國際排序,以及另一個具有傳統排序的 CultureInfo 物件,來建立西班牙文(西班牙)的 CultureInfo 物件。The following example shows how to create a CultureInfo object for Spanish (Spain) with the international sort and another CultureInfo object with the traditional sort.

using namespace System;
using namespace System::Collections;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes the CultureInfo which uses the international sort.
   CultureInfo^ myCIintl = gcnew CultureInfo( "es-ES",false );
   
   // Creates and initializes the CultureInfo which uses the traditional sort.
   CultureInfo^ myCItrad = gcnew CultureInfo( 0x040A,false );
   
   // Displays the properties of each culture.
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "PROPERTY", "INTERNATIONAL", "TRADITIONAL" );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "CompareInfo", myCIintl->CompareInfo, myCItrad->CompareInfo );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "DisplayName", myCIintl->DisplayName, myCItrad->DisplayName );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "EnglishName", myCIintl->EnglishName, myCItrad->EnglishName );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "IsNeutralCulture", myCIintl->IsNeutralCulture, myCItrad->IsNeutralCulture );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "IsReadOnly", myCIintl->IsReadOnly, myCItrad->IsReadOnly );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "LCID", myCIintl->LCID, myCItrad->LCID );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "Name", myCIintl->Name, myCItrad->Name );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "NativeName", myCIintl->NativeName, myCItrad->NativeName );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "Parent", myCIintl->Parent, myCItrad->Parent );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "TextInfo", myCIintl->TextInfo, myCItrad->TextInfo );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "ThreeLetterISOLanguageName", myCIintl->ThreeLetterISOLanguageName, myCItrad->ThreeLetterISOLanguageName );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "ThreeLetterWindowsLanguageName", myCIintl->ThreeLetterWindowsLanguageName, myCItrad->ThreeLetterWindowsLanguageName );
   Console::WriteLine( "{0,-31}{1,-47}{2,-25}", "TwoLetterISOLanguageName", myCIintl->TwoLetterISOLanguageName, myCItrad->TwoLetterISOLanguageName );
   Console::WriteLine();
   
   // Compare two strings using myCIintl -> 
   Console::WriteLine( "Comparing \"llegar\" and \"lugar\"" );
   Console::WriteLine( "   With myCIintl -> CompareInfo -> Compare: {0}", myCIintl->CompareInfo->Compare( "llegar", "lugar" ) );
   Console::WriteLine( "   With myCItrad -> CompareInfo -> Compare: {0}", myCItrad->CompareInfo->Compare( "llegar", "lugar" ) );
}

/*
This code produces the following output.

PROPERTY                       INTERNATIONAL                                  TRADITIONAL              
CompareInfo                    CompareInfo - es-ES                            CompareInfo - es-ES_tradnl
DisplayName                    Spanish (Spain)                                Spanish (Spain)          
EnglishName                    Spanish (Spain, International Sort)            Spanish (Spain, Traditional Sort)
IsNeutralCulture               False                                          False                    
IsReadOnly                     False                                          False                    
LCID                           3082                                           1034                     
Name                           es-ES                                          es-ES                    
NativeName                     Español (España, alfabetización internacional) Español (España, alfabetización tradicional)
Parent                         es                                             es                       
TextInfo                       TextInfo - es-ES                               TextInfo - es-ES_tradnl  
ThreeLetterISOLanguageName     spa                                            spa                      
ThreeLetterWindowsLanguageName ESN                                            ESP                      
TwoLetterISOLanguageName       es                                             es                       

Comparing "llegar" and "lugar"
   With myCIintl -> CompareInfo -> Compare: -1
   With myCItrad -> CompareInfo -> Compare: 1

*/
using System;
using System.Collections;
using System.Globalization;

public class SamplesCultureInfo
{

   public static void Main()
   {

      // Creates and initializes the CultureInfo which uses the international sort.
      CultureInfo myCIintl = new CultureInfo("es-ES", false);

      // Creates and initializes the CultureInfo which uses the traditional sort.
      CultureInfo myCItrad = new CultureInfo(0x040A, false);

      // Displays the properties of each culture.
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "PROPERTY", "INTERNATIONAL", "TRADITIONAL");
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "CompareInfo", myCIintl.CompareInfo, myCItrad.CompareInfo);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "DisplayName", myCIintl.DisplayName, myCItrad.DisplayName);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "EnglishName", myCIintl.EnglishName, myCItrad.EnglishName);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "IsNeutralCulture", myCIintl.IsNeutralCulture, myCItrad.IsNeutralCulture);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "IsReadOnly", myCIintl.IsReadOnly, myCItrad.IsReadOnly);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "LCID", myCIintl.LCID, myCItrad.LCID);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "Name", myCIintl.Name, myCItrad.Name);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "NativeName", myCIintl.NativeName, myCItrad.NativeName);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "Parent", myCIintl.Parent, myCItrad.Parent);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "TextInfo", myCIintl.TextInfo, myCItrad.TextInfo);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "ThreeLetterISOLanguageName", myCIintl.ThreeLetterISOLanguageName, myCItrad.ThreeLetterISOLanguageName);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "ThreeLetterWindowsLanguageName", myCIintl.ThreeLetterWindowsLanguageName, myCItrad.ThreeLetterWindowsLanguageName);
      Console.WriteLine("{0,-31}{1,-47}{2,-25}", "TwoLetterISOLanguageName", myCIintl.TwoLetterISOLanguageName, myCItrad.TwoLetterISOLanguageName);
      Console.WriteLine();

      // Compare two strings using myCIintl.
      Console.WriteLine("Comparing \"llegar\" and \"lugar\"");
      Console.WriteLine("   With myCIintl.CompareInfo.Compare: {0}", myCIintl.CompareInfo.Compare("llegar", "lugar"));
      Console.WriteLine("   With myCItrad.CompareInfo.Compare: {0}", myCItrad.CompareInfo.Compare("llegar", "lugar"));

   }

}

/*
This code produces the following output.

PROPERTY                       INTERNATIONAL                                  TRADITIONAL              
CompareInfo                    CompareInfo - es-ES                            CompareInfo - es-ES_tradnl
DisplayName                    Spanish (Spain)                                Spanish (Spain)          
EnglishName                    Spanish (Spain, International Sort)            Spanish (Spain, Traditional Sort)
IsNeutralCulture               False                                          False                    
IsReadOnly                     False                                          False                    
LCID                           3082                                           1034                     
Name                           es-ES                                          es-ES                    
NativeName                     Español (España, alfabetización internacional) Español (España, alfabetización tradicional)
Parent                         es                                             es                       
TextInfo                       TextInfo - es-ES                               TextInfo - es-ES_tradnl  
ThreeLetterISOLanguageName     spa                                            spa                      
ThreeLetterWindowsLanguageName ESN                                            ESP                      
TwoLetterISOLanguageName       es                                             es                       

Comparing "llegar" and "lugar"
   With myCIintl.CompareInfo.Compare: -1
   With myCItrad.CompareInfo.Compare: 1

*/
Imports System.Collections
Imports System.Globalization

Module Module1

    Public Sub Main()

        ' Creates and initializes the CultureInfo which uses the international sort.
        Dim myCIintl As New CultureInfo("es-ES", False)

        ' Creates and initializes the CultureInfo which uses the traditional sort.
        Dim myCItrad As New CultureInfo(&H40A, False)

        ' Displays the properties of each culture.
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "PROPERTY", "INTERNATIONAL", "TRADITIONAL")
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "CompareInfo", myCIintl.CompareInfo, myCItrad.CompareInfo)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "DisplayName", myCIintl.DisplayName, myCItrad.DisplayName)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "EnglishName", myCIintl.EnglishName, myCItrad.EnglishName)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "IsNeutralCulture", myCIintl.IsNeutralCulture, myCItrad.IsNeutralCulture)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "IsReadOnly", myCIintl.IsReadOnly, myCItrad.IsReadOnly)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "LCID", myCIintl.LCID, myCItrad.LCID)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "Name", myCIintl.Name, myCItrad.Name)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "NativeName", myCIintl.NativeName, myCItrad.NativeName)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "Parent", myCIintl.Parent, myCItrad.Parent)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "TextInfo", myCIintl.TextInfo, myCItrad.TextInfo)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "ThreeLetterISOLanguageName", myCIintl.ThreeLetterISOLanguageName, myCItrad.ThreeLetterISOLanguageName)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "ThreeLetterWindowsLanguageName", myCIintl.ThreeLetterWindowsLanguageName, myCItrad.ThreeLetterWindowsLanguageName)
        Console.WriteLine("{0,-31}{1,-47}{2,-25}", "TwoLetterISOLanguageName", myCIintl.TwoLetterISOLanguageName, myCItrad.TwoLetterISOLanguageName)
        Console.WriteLine()

        ' Compare two strings using myCIintl.
        Console.WriteLine("Comparing ""llegar"" and ""lugar""")
        Console.WriteLine("   With myCIintl.CompareInfo.Compare: {0}", myCIintl.CompareInfo.Compare("llegar", "lugar"))
        Console.WriteLine("   With myCItrad.CompareInfo.Compare: {0}", myCItrad.CompareInfo.Compare("llegar", "lugar"))

    End Sub



'This code produces the following output.
'
'PROPERTY                       INTERNATIONAL                                  TRADITIONAL              
'CompareInfo                    CompareInfo - es-ES                            CompareInfo - es-ES_tradnl
'DisplayName                    Spanish (Spain)                                Spanish (Spain)          
'EnglishName                    Spanish (Spain, International Sort)            Spanish (Spain, Traditional Sort)
'IsNeutralCulture               False                                          False                    
'IsReadOnly                     False                                          False                    
'LCID                           3082                                           1034                     
'Name                           es-ES                                          es-ES                    
'NativeName                     Español (España, alfabetización internacional) Español (España, alfabetización tradicional)
'Parent                         es                                             es                       
'TextInfo                       TextInfo - es-ES                               TextInfo - es-ES_tradnl  
'ThreeLetterISOLanguageName     spa                                            spa                      
'ThreeLetterWindowsLanguageName ESN                                            ESP                      
'TwoLetterISOLanguageName       es                                             es                       
'
'Comparing "llegar" and "lugar"
'   With myCIintl.CompareInfo.Compare: -1
'   With myCItrad.CompareInfo.Compare: 1

End Module

備註

CultureInfo 類別提供文化特性特定的資訊,例如與特定文化特性相關聯的語言、子語言、國家/地區、行事曆和慣例。The CultureInfo class provides culture-specific information, such as the language, sublanguage, country/region, calendar, and conventions associated with a particular culture. 這個類別也可讓您存取 DateTimeFormatInfoNumberFormatInfoCompareInfoTextInfo 物件的文化特性特定實例。This class also provides access to culture-specific instances of the DateTimeFormatInfo, NumberFormatInfo, CompareInfo, and TextInfo objects. 這些物件包含因文化特性而異的作業所需的資訊,例如大小寫、格式化日期和數位,以及比較字串。These objects contain the information required for culture-specific operations, such as casing, formatting dates and numbers, and comparing strings. 類別會直接或間接使用 CultureInfo 類別,以格式化、剖析或操作特定文化特性的資料,例如 StringDateTimeDateTimeOffset和數數值型別。The CultureInfo class is used either directly or indirectly by classes that format, parse, or manipulate culture-specific data, such as String, DateTime, DateTimeOffset, and the numeric types.

本節內容:In this section:

文化特性名稱和識別碼 Culture names and identifiers
變、中性和特定文化特性 Invariant, neutral, and specific cultures
自訂文化特性 Custom cultures
動態文化特性資料 Dynamic culture data
目前文化特性和目前 UI 文化特性的 CultureInfo 和文化特性資料 CultureInfo and cultural data The current culture and current UI culture
取得所有文化特性 Getting all cultures
文化特性和執行緒 Culture and threads
文化特性和應用程式域 Culture and application domains
文化特性和以工作為基礎的非同步作業 Culture and task-based asynchronous operations
CultureInfo 物件序列化 CultureInfo object serialization
控制台覆寫 Control Panel overrides
替代排序次序 Alternate sort orders
文化特性和 Windows 應用程式Culture and Windows apps

文化特性名稱和識別碼Culture names and identifiers

CultureInfo 類別會根據 RFC 4646,為每個文化特性指定唯一的名稱。The CultureInfo class specifies a unique name for each culture, based on RFC 4646. 此名稱結合了與語言相關聯的 ISO 639 2 字母小寫文化特性,以及與國家或地區相關聯的 ISO 3166 2 字母大寫子領域性代碼。The name is a combination of an ISO 639 two-letter lowercase culture code associated with a language and an ISO 3166 two-letter uppercase subculture code associated with a country or region. 此外,針對以 .NET Framework 4.NET Framework 4 或更新版本為目標,且在 Windows 10 或更新版本下執行的應用程式,支援對應至有效 BCP-47 語言標記的文化特性名稱。In addition, for apps that target .NET Framework 4.NET Framework 4 or later and are running under Windows 10 or later, culture names that correspond to valid BCP-47 language tags are supported.

注意

將文化特性名稱傳遞給類別的函式或方法(例如 CreateSpecificCultureCultureInfo)時,其大小寫並不重要。When a culture name is passed to a class constructor or a method such as CreateSpecificCulture or CultureInfo, its case is not significant.

以 RFC 4646 為基礎之文化特性名稱的格式是languagecode2>-country/regioncode2,其中languagecode2是兩個字母的語言代碼,而country/regioncode2則是兩個字母的文化特性代碼。The format for the culture name based on RFC 4646 is languagecode2>-country/regioncode2, where languagecode2 is the two-letter language code and country/regioncode2 is the two-letter subculture code. 範例包括日本(日本)和 en-us (英文)(美國)的 ja-jp。Examples include ja-JP for Japanese (Japan) and en-US for English (United States). 在兩個字母的語言代碼無法使用的情況下,會使用衍生自 ISO 639-2 的三個字母代碼。In cases where a two-letter language code is not available, a three-letter code derived from ISO 639-2 is used.

請注意,某些文化特性名稱也會指定 ISO 15924 腳本。Note that some culture names also specify an ISO 15924 script. 例如,Cyrl 會指定斯拉夫文腳本,而 Latn 則指定拉丁腳本。For example, Cyrl specifies the Cyrillic script and Latn specifies the Latin script. 包含腳本的文化特性名稱會使用模式languagecode2-scripttag-country/regioncode2A culture name that includes a script uses the pattern languagecode2-scripttag-country/regioncode2. 此文化特性名稱類型的範例為 uz-Cyrl-UZ for 烏茲別克(斯拉夫,烏茲別克)。An example of this type of culture name is uz-Cyrl-UZ for Uzbek (Cyrillic, Uzbekistan). 在 Windows Vista 之前的 Windows 作業系統上,包含腳本的文化特性名稱會使用模式languagecode2-country/regioncode2-scripttag,例如,Uz-Uz-Cyrl for 烏茲別克(斯拉夫,烏茲別克斯坦)).On Windows operating systems before Windows Vista, a culture name that includes a script uses the pattern languagecode2-country/regioncode2-scripttag, for example, uz-UZ-Cyrl for Uzbek (Cyrillic, Uzbekistan).

中性文化特性只由兩個字母小寫語言代碼所指定。A neutral culture is specified by only the two-letter lowercase language code. 例如,fr 會指定法文的中性文化特性,而 de 則會指定德文的中性文化特性。For example, fr specifies the neutral culture for French, and de specifies the neutral culture for German.

注意

此規則有兩個不衝突的文化特性名稱。There are two culture names that contradict this rule. 名為 zh Hans 的文化特性中文(簡體)和中文(繁體),其名稱為 zh-Zh-hant,為中性文化特性。The cultures Chinese (Simplified), named zh-Hans, and Chinese (Traditional), named zh-Hant, are neutral cultures. 文化特性名稱代表目前的標準,除非您有使用較舊名稱 zh-CHS 和 zh-CHT 的原因,否則應使用。The culture names represent the current standard and should be used unless you have a reason for using the older names zh-CHS and zh-CHT.

文化特性識別碼是標準的國際數值縮寫,而且具有唯一識別其中一個已安裝文化特性所需的元件。A culture identifier is a standard international numeric abbreviation and has the components necessary to uniquely identify one of the installed cultures. 您的應用程式可以使用預先定義的文化特性識別碼或定義自訂識別碼。Your application can use predefined culture identifiers or define custom identifiers.

某些預先定義的文化特性名稱和識別碼會由 System.Globalization 命名空間中的這個和其他類別使用。Certain predefined culture names and identifiers are used by this and other classes in the System.Globalization namespace. 如需 Windows 系統的詳細文化特性資訊,請參閱windows 支援的語言/區功能變數名稱稱清單中的語言標記一欄。For detailed culture information for Windows systems, see the Language tag column in the list of language/region names supported by Windows. 文化名稱遵循 BCP 47 定義的標準。Culture names follow the standard defined by BCP 47.

請記住,文化特性名稱和識別碼只代表可以在特定電腦上找到的文化特性子集。Remember that the culture names and identifiers represent only a subset of cultures that can be found on a particular computer. Windows 版本或 service pack 可以變更可用的文化特性。Windows versions or service packs can change the available cultures. 應用程式會使用 CultureAndRegionInfoBuilder 類別來新增自訂文化特性。Applications add custom cultures using the CultureAndRegionInfoBuilder class. 使用者使用 Microsoft Locale Builder 工具加入自己的自訂文化特性。Users add their own custom cultures using the Microsoft Locale Builder tool. Microsoft Locale Builder 是使用 CultureAndRegionInfoBuilder 類別,以 managed 程式碼撰寫。Microsoft Locale Builder is written in managed code using the CultureAndRegionInfoBuilder class.

有數個不同的名稱與文化特性密切相關,特別是與下列類別成員相關聯的名稱:Several distinct names are closely associated with a culture, notably the names associated with the following class members:

不變、中性和特定文化特性Invariant, neutral, and specific cultures

文化特性通常分為三個集合:不區分文化特性、中性文化特性和特定文化特性。The cultures are generally grouped into three sets: invariant cultures, neutral cultures, and specific cultures.

不因文化特性而異的文化特性不區分文化特性。An invariant culture is culture-insensitive. 您的應用程式會使用空字串("")或其識別碼,依名稱指定不因文化特性而異。Your application specifies the invariant culture by name using an empty string ("") or by its identifier. InvariantCulture 定義不因文化特性而異的實例。InvariantCulture defines an instance of the invariant culture. 它會與英文語言相關聯,但不會與任何國家/地區建立關聯。It is associated with the English language but not with any country/region. 它幾乎用於需要文化特性之 Globalization 命名空間中的任何方法。It is used in almost any method in the Globalization namespace that requires a culture.

中性文化特性是與語言相關聯的文化特性,但不是國家/地區。A neutral culture is a culture that is associated with a language but not with a country/region. 特定文化特性是與語言和國家/地區相關聯的文化特性。A specific culture is a culture that is associated with a language and a country/region. 例如,fr 是法文文化特性的中性名稱,而 fr-fr 則是特定法文(法國)文化特性的名稱。For example, fr is the neutral name for the French culture, and fr-FR is the name of the specific French (France) culture. 請注意,中文(簡體)和中文(繁體)也視為中性文化特性。Note that Chinese (Simplified) and Chinese (Traditional) are also considered neutral cultures.

不建議針對中性文化特性建立 CompareInfo 類別的實例,因為它所包含的資料是任意的。Creating an instance of a CompareInfo class for a neutral culture is not recommended because the data it contains is arbitrary. 若要顯示和排序資料,請同時指定語言和地區。To display and sort data, specify both the language and region. 此外,針對中性文化特性所建立之 CompareInfo 物件的 Name 屬性只會傳回國家/地區,且不包含該區域。Additionally, the Name property of a CompareInfo object created for a neutral culture returns only the country and does not include the region.

定義的文化特性具有階層,其中特定文化特性的父系是中性文化特性,而中性文化特性的父系則是不因文化特性而異。The defined cultures have a hierarchy in which the parent of a specific culture is a neutral culture and the parent of a neutral culture is the invariant culture. Parent 屬性包含與特定文化特性相關聯的中性文化特性。The Parent property contains the neutral culture associated with a specific culture. 自訂文化特性應以符合此模式的方式定義 Parent 屬性。Custom cultures should define the Parent property in conformance with this pattern.

如果作業系統無法使用特定文化特性的資源,則會使用相關聯的中性文化特性的資源。If the resources for a specific culture are not available in the operating system, the resources for the associated neutral culture are used. 如果無法使用中性文化特性的資源,則會使用內嵌在主要元件中的資源。If the resources for the neutral culture are not available, the resources embedded in the main assembly are used. 如需資源回退程式的詳細資訊,請參閱封裝和部署資源For more information on the resource fallback process, see Packaging and Deploying Resources.

Windows API 中的地區設定清單與 .NET Framework 支援的文化特性清單稍微不同。The list of locales in the Windows API is slightly different from the list of cultures supported by the .NET Framework. 如果需要與 Windows 的互通性(例如,透過 p/invoke 機制),應用程式應該使用針對作業系統定義的特定文化特性。If interoperability with Windows is required, for example, through the p/invoke mechanism, the application should use a specific culture that is defined for the operating system. 使用特定文化特性可確保與對等的 Windows 地區設定一致,這是使用與 LCID相同的地區設定識別碼來識別。Use of the specific culture ensures consistency with the equivalent Windows locale, which is identified with a locale identifier that is the same as LCID.

只能針對不因文化特性或特定文化特性而建立的 DateTimeFormatInfoNumberFormatInfo,而不是針對中性文化特性。A DateTimeFormatInfo or a NumberFormatInfo can be created only for the invariant culture or for specific cultures, not for neutral cultures.

如果 DateTimeFormatInfo.CalendarTaiwanCalendar,但 Thread.CurrentCulture 未設定為 zh,則 DateTimeFormatInfo.NativeCalendarNameDateTimeFormatInfo.GetEraNameDateTimeFormatInfo.GetAbbreviatedEraName 會傳回空字串("")。If DateTimeFormatInfo.Calendar is the TaiwanCalendar but the Thread.CurrentCulture is not set to zh-TW, then DateTimeFormatInfo.NativeCalendarName, DateTimeFormatInfo.GetEraName, and DateTimeFormatInfo.GetAbbreviatedEraName return an empty string ("").

自訂文化特性Custom cultures

除了 Windows 作業系統和 .NET Framework 所支援的預先定義文化特性以外,.NET Framework 支援三種類型的自訂文化特性:In addition to the predefined cultures supported by the Windows operating system and the .NET Framework, the .NET Framework supports three types of custom cultures:

  • 補充 Windows 或 .NET Framework 中可用文化特性的新文化特性。New cultures that supplement the cultures available in Windows or the .NET Framework. 例如,應用程式可以在系統上安裝代表 fj-FJ (或 Fijan (斐濟))文化特性的 CultureInfo 物件。For example, an application could install a CultureInfo object that represents the fj-FJ (or Fijan (Fiji)) culture on a system.

  • 取代文化特性,其屬性與 Windows 和 .NET Framework 所支援之標準文化特性的屬性不同。Replacement cultures whose properties are different from the properties of the standard cultures supported by Windows and the .NET Framework.

  • 具有使用者覆寫的標準文化特性。Standard cultures with user overrides. 使用者可以使用 [控制台] 中的 [區域和語言] 應用程式,自訂現有文化特性的屬性值。The user can use the Region and Language application in Control Panel to customize an existing culture's property values.

注意

您可以使用 CultureAndRegionInfoBuilder 類別來定義、儲存和註冊自訂文化特性,以補充或取代現有的文化特性。You can use the CultureAndRegionInfoBuilder class to define, save, and register custom cultures that either supplement or replace existing cultures. CultureAndRegionInfoBuilder.Save 方法會建立地區設定資料標記語言(LDML)檔案,以用來在目標系統上安裝自訂文化特性。The CultureAndRegionInfoBuilder.Save method creates a Locale Data Markup Language (LDML) file that can be used to install a custom culture on target systems. 如需使用 CultureAndRegionInfoBuilder 類別建立新的或取代文化特性的逐步解說資訊,請參閱 CultureAndRegionInfoBuilder 類別主題。For step-by step information on using the CultureAndRegionInfoBuilder class to create a new or replacement culture, see the CultureAndRegionInfoBuilder class topic.

由於 .NET Framework 支援自訂文化特性,因此在使用特定文化特性的資料時,您應該考慮下列事項:Because the .NET Framework supports custom cultures, you should consider the following when working with culture-specific data:

  • 自訂文化特性的值可能會超過預先定義之文化特性的範圍。Custom cultures can have values that exceed the ranges of the predefined cultures. 例如,某些文化特性有異常的月份名稱、非預期的日期或時間格式,或其他不尋常的資料。For example, some cultures have unusually long month names, unexpected date or time formats, or other unusual data.

  • 當您在使用者介面中顯示特定文化特性的資料時,應該遵守使用者的自訂;例如,使用者可能需要24小時制或 yyyyMMdd 日期格式。When you display culture-specific data in the user interface, you should respect the user's customizations; for example, the user might want a 24-hour clock or a yyyyMMdd date format.

  • 請記住,自訂文化特性會覆寫預設值。Remember that custom cultures override default values. 因此,您無法將文化特性資料視為穩定的。Therefore, you cannot consider culture data to be stable. 國家/地區名稱、數位和日期格式,以及拼寫可能會在未來變更。Country names, number and date formats, and spellings may change in the future. 如果您想要序列化區分文化特性的資料(例如日期和時間字串)以傳遞至日期和時間剖析函式,您應該使用不因文化特性而異或特定。If you want to serialize culture-sensitive data such as date and time strings to be passed to the date and time parsing functions, you should use the invariant culture or a specific .

系統上安裝之自訂文化特性的 CultureTypes 屬性值包含 System.Globalization.CultureTypes 旗標,而自訂文化特性會指派 LOCALE_CUSTOM_UNSPECIFIEDLCID 屬性值(0x1000 或4096)。The CultureTypes property value of custom cultures installed on a system includes the System.Globalization.CultureTypes flag, and custom cultures are assigned an LCID property value of LOCALE_CUSTOM_UNSPECIFIED (0x1000, or 4096). 請注意,從 Windows 10 開始,此值也會指派給缺少完整文化特性資料的系統定義文化特性。Note that, starting with Windows 10, this value is also assigned to system-defined cultures that lack complete cultural data.

CultureInfo 和文化特性資料CultureInfo and cultural data

.NET 會根據執行、平臺和版本,從各種來源的其中一個來衍生其文化特性資料:.NET derives its cultural data from a one of a variety of sources, depending on implementation, platform, and version:

  • 在 .NET Framework 3.5 和更早版本中,文化特性資料是由 Windows 作業系統和 .NET Framework 提供。In .NET Framework 3.5 and earlier versions, cultural data is provided by both the Windows operating system and the .NET Framework.

  • 在 .NET Framework 4 和更新版本中,文化特性資料是由 Windows 作業系統提供。In .NET Framework 4 and later versions, cultural data is provided by the Windows operating system.

  • 在 Windows 上執行的所有 .NET Core 版本中,文化特性資料都是由 Windows 作業系統提供。In all versions of .NET Core running on Windows, cultural data is provided by the Windows operating system.

  • 在 Unix 平臺上執行的所有 .NET Core 版本中,文化特性資料都是由Unicode (ICU)程式庫的國際元件所提供。In all versions of .NET Core running on Unix platforms, cultural data is provided by the International Components for Unicode (ICU) Library. 特定版本的 ICU 程式庫取決於個別的作業系統。The specific version of the ICU Library depends on the individual operating system.

因此,特定 .NET 執行、平臺或版本上所提供的文化特性可能無法在不同的 .NET 執行、平臺或版本上使用。Because of this, a culture available on a particular .NET implementation, platform, or version may not be available on a different .NET implementation, platform, or version.

某些 CultureInfo 物件會根據基礎平臺而有所不同。Some CultureInfo objects differ depending on the underlying platform. 特別是,"zh-CN" 或中文(簡體,中國)和 zh,或中文(繁體,臺灣)在 Windows 系統上都是可用的文化特性,但它們在 Unix 系統上是具有別名的文化特性。In particular, "zh-CN", or Chinese (Simplified, China) and zh-TW, or Chinese (Traditional, Taiwan), are available cultures on Windows systems, but they are aliased cultures on Unix systems. "zh" 是 "zh-Hans" 文化特性的別名,"zh-臺灣" 是 "zh-Zh-hant-臺灣" 文化特性的別名。"zh-CN" is an alias for the "zh-Hans-CN" culture, and "zh-TW" is an alias for the "zh-Hant-TW" culture. 呼叫 GetCultures 方法時,不會傳回別名的文化特性,而且可能會有不同的屬性值,包括不同的 Parent 文化特性,而不是其 Windows 對應項。Aliased cultures are not returned by calls to the GetCultures method and may have different property values, including different Parent cultures, than their Windows counterparts. 針對 zh-CN 和 zh 的文化特性,這些 differenes 包括下列各項:For the zh-CN and zh-TW cultures, these differenes include the following:

  • 在 Windows 系統上,"zh" 文化特性的父系文化特性為 "zh-Hans",而 "zh" 文化特性的父系文化特性為 "zh-Zh-hant"。On Windows systems, the parent culture of the "zh-CN" culture is "zh-Hans", and the parent culture of the "zh-TW" culture is "zh-Hant". 這兩種文化特性的父文化特性都是 "zh"。The parent culture of both these cultures is "zh". 在 Unix 系統上,這兩種文化特性的父系都是 "zh"。On Unix systems, the parents of both cultures are "zh". 這表示,如果您未提供 "zh" 或 "zh" 文化特性的文化特性專屬資源,但卻提供了中性 "zh-Hans" 或 "zh-Zh-hant" 文化特性的資源,您的應用程式將會在 Windows 上載入中性文化特性的資源,但不是在 Unix 上.This means that, if you don't provide culture-specific resources for the "zh-CN" or "zh-TW" cultures but do provide a resources for the neutral "zh-Hans" or "zh-Hant" culture, your application will load the resources for the neutral culture on Windows but not on Unix. 在 Unix 系統上,您必須將執行緒的 CurrentUICulture 明確設定為 "zh-Hans" 或 "zh Zh-hant"。On Unix systems, you must explicitly set the thread's CurrentUICulture to either "zh-Hans" or "zh-Hant".

  • 在 Windows 系統上,對代表 "zh-CN" 文化特性的實例呼叫 CultureInfo.Equals,並將 "zh-Hans" 實例傳遞給它,會傳回 trueOn Windows systems, calling CultureInfo.Equals on an instance that represents the "zh-CN" culture and passing it a "zh-Hans-CN" instance returns true. 在 Unix 系統上,方法呼叫會傳回 falseOn Unix systems, the method call returns false. 這個行為也適用于在 "zh-臺灣" CultureInfo 實例上呼叫 Equals,並將它傳遞給它一個 "zh-Zh-hant-華文" 實例。This behavior also applies to calling Equals on a "zh-TW" CultureInfo instance and passing it a "zh-Hant-Tw" instance.

動態文化特性資料Dynamic culture data

除了不因文化特性而異,文化特性資料是動態的。Except for the invariant culture, culture data is dynamic. 這也適用于預先定義的文化特性。This is true even for the predefined cultures. 例如,國家或地區採用新的貨幣、變更其單字的拼寫,或變更其偏好的行事曆,而文化特性定義會變更以進行追蹤。For example, countries or regions adopt new currencies, change their spellings of words, or change their preferred calendar, and culture definitions change to track this. 自訂文化特性如有變更恕不另行通知,且任何特定文化特性可能會由自訂取代文化特性覆寫。Custom cultures are subject to change without notice, and any specific culture might be overridden by a custom replacement culture. 此外,如下所述,個別使用者可以覆寫文化喜好設定。Also, as discussed below, an individual user can override cultural preferences. 應用程式應該一律在執行時間取得文化特性資料。Applications should always obtain culture data at run time.

警告

儲存資料時,您的應用程式應該使用不因文化特性而異、二進位格式,或特定與文化特性無關的格式。When saving data, your application should use the invariant culture, a binary format, or a specific culture-independent format. 根據與特定文化特性(不因文化特性而異)相關聯的目前值儲存的資料,可能會變成無法讀取,或可能會因為文化特性變更而改變。Data saved according to the current values associated with a particular culture, other than the invariant culture, might become unreadable or might change in meaning if that culture changes.

目前的文化特性和目前的 UI 文化特性The current culture and current UI culture

.NET 應用程式中的每個執行緒都有目前的文化特性和目前的 UI 文化特性。Every thread in a .NET application has a current culture and a current UI culture. 目前的文化特性會決定日期、時間、數位和貨幣值的格式設定慣例、文字的排序次序、大小寫慣例,以及字串的比較方式。The current culture determines the formatting conventions for dates, times, numbers, and currency values, the sort order of text, casing conventions, and the ways in which strings are compared. 目前的 UI 文化特性是用來在執行時間捕獲特定文化特性的資源。The current UI culture is used to retrieve culture-specific resources at runtime.

注意

如需目前和目前 UI 文化特性如何根據每個執行緒來決定的詳細資訊,請參閱文化特性和執行緒一節。For information on how the current and current UI culture is determined on a per-thread basis, see the Culture and threads section. 如需目前和目前 UI 文化特性如何在新應用程式域中執行的執行緒上,以及跨應用程式域界限的執行緒上如何判斷的詳細資訊,請參閱文化特性和應用程式域一節。For information on how the current and current UI culture is determined on threads executing in a new application domain, and on threads that cross application domain boundaries, see the Culture and application domains section. 如需目前和目前如何在執行以工作為基礎之非同步作業的執行緒上判斷的詳細資訊,請參閱文化特性和以工作為基礎的非同步作業一節。For information on how the current and current is determined on threads performing task-based asynchronous operations, see the Culture and task-based asynchronous operations section.

如需目前文化特性的詳細資訊,請參閱 CultureInfo.CurrentCulture 屬性主題。For more detailed information on the current culture, see the CultureInfo.CurrentCulture property topic. 如需目前 UI 文化特性的詳細資訊,請參閱 CultureInfo.CurrentUICulture 屬性主題。For more detailed information on the current UI culture, see the CultureInfo.CurrentUICulture property topic.

正在抓取目前和目前的 UI 文化特性Retrieving the current and current UI cultures

您可以使用兩種方式的其中一種,取得代表目前文化特性的 CultureInfo 物件:You can get a CultureInfo object that represents the current culture in either of two ways:

下列範例會抓取這兩個屬性值,並加以比較,以顯示它們相等,並顯示目前文化特性的名稱。The following example retrieves both property values, compares them to show that they are equal, and displays the name of the current culture.

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   public static void Main()
   {
      CultureInfo culture1 = CultureInfo.CurrentCulture;
      CultureInfo culture2 = Thread.CurrentThread.CurrentCulture;
      Console.WriteLine("The current culture is {0}", culture1.Name);
      Console.WriteLine("The two CultureInfo objects are equal: {0}",
                        culture1 == culture2);
   }
}
// The example displays output like the following:
//     The current culture is en-US
//     The two CultureInfo objects are equal: True
Imports System.Globalization
Imports System.Threading

Module Example
   Public Sub Main()
      Dim culture1 As CultureInfo = CultureInfo.CurrentCulture
      Dim culture2 As CultureInfo = Thread.CurrentThread.CurrentCulture
      Console.WriteLine("The current culture is {0}", culture1.Name)
      Console.WriteLine("The two CultureInfo objects are equal: {0}",
                        culture1.Equals(culture2))
   End Sub
End Module
' The example displays output like the following:
'     The current culture is en-US
'     The two CultureInfo objects are equal: True

您可以使用兩種方式之一,取得代表目前 UI 文化特性的 CultureInfo 物件:You can get a CultureInfo object that represents the current UI culture in either of two ways:

下列範例會抓取這兩個屬性值,並加以比較,以顯示它們相等,並顯示目前 UI 文化特性的名稱。The following example retrieves both property values, compares them to show that they are equal, and displays the name of the current UI culture.

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   public static void Main()
   {
      CultureInfo uiCulture1 = CultureInfo.CurrentUICulture;
      CultureInfo uiCulture2 = Thread.CurrentThread.CurrentUICulture;
      Console.WriteLine("The current UI culture is {0}", uiCulture1.Name);
      Console.WriteLine("The two CultureInfo objects are equal: {0}",
                        uiCulture1 == uiCulture2);
   }
}
// The example displays output like the following:
//     The current UI culture is en-US
//     The two CultureInfo objects are equal: True
Imports System.Globalization
Imports System.Threading

Module Example
   Public Sub Main()
      Dim uiCulture1 As CultureInfo = CultureInfo.CurrentUICulture
      Dim uiCulture2 As CultureInfo = Thread.CurrentThread.CurrentUICulture
      Console.WriteLine("The current UI culture is {0}", uiCulture1.Name)
      Console.WriteLine("The two CultureInfo objects are equal: {0}",
                        uiCulture1.Equals(uiCulture2))
   End Sub
End Module
' The example displays output like the following:
'     The current UI culture is en-US
'     The two CultureInfo objects are equal: True

設定目前和目前的 UI 文化特性Setting the current and current UI cultures

若要變更執行緒的文化特性和 UI 文化特性,請執行下列動作:To change the culture and UI culture of a thread, do the following:

  1. 藉由呼叫 CultureInfo 類別的「函式」並將文化特性的名稱傳遞給它,以具現化代表該文化特性的 CultureInfo 物件。Instantiate a CultureInfo object that represents that culture by calling a CultureInfo class constructor and passing it the name of the culture. 如果新的文化特性與目前的 Windows 文化特性相同,CultureInfo(String) 的函式會具現化會反映使用者覆寫的 CultureInfo 物件。The CultureInfo(String) constructor instantiates a CultureInfo object that reflects user overrides if the new culture is the same as the current Windows culture. 如果新的文化特性與目前的 Windows 文化特性相同,則 CultureInfo(String, Boolean) 的函式可讓您指定新具現化的 CultureInfo 物件是否反映使用者覆寫。The CultureInfo(String, Boolean) constructor allows you to specify whether the newly instantiated CultureInfo object reflects user overrides if the new culture is the same as the current Windows culture.

  2. CultureInfo 物件指派給 .NET Core 上的 CultureInfo.CurrentCultureCultureInfo.CurrentUICulture 屬性,以及 .NET Framework 4.6 和更新版本。Assign the CultureInfo object to the CultureInfo.CurrentCulture or CultureInfo.CurrentUICulture property on .NET Core and .NET Framework 4.6 and later versions. (在 .NET Framework 4.5.2 和較早的版本上,youc 會將 CultureInfo 物件指派給 Thread.CurrentCultureThread.CurrentUICulture 屬性)。(On .NET Framework 4.5.2 and earlier versions, youc an assign the CultureInfo object to the Thread.CurrentCulture or Thread.CurrentUICulture property.)

下列範例會抓取目前的文化特性。The following example retrieves the current culture. 如果它是法文(法國)文化特性以外的任何專案,就會將目前的文化特性變更為法文(法國)。If it is anything other than the French (France) culture, it changes the current culture to French (France). 否則,它會將目前的文化特性變更為法文(盧森堡)。Otherwise, it changes the current culture to French (Luxembourg).

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      CultureInfo current = CultureInfo.CurrentCulture;
      Console.WriteLine("The current culture is {0}", current.Name);
      CultureInfo newCulture;
      if (current.Name.Equals("fr-FR"))
         newCulture = new CultureInfo("fr-LU");
      else   
         newCulture = new CultureInfo("fr-FR");
      
      CultureInfo.CurrentCulture = newCulture;
      Console.WriteLine("The current culture is now {0}", 
                        CultureInfo.CurrentCulture.Name);   
   }
}
// The example displays output like the following:
//     The current culture is en-US
//     The current culture is now fr-FR
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      Console.WriteLine("The current culture is {0}", current.Name)
      Dim newCulture As CultureInfo
      If current.Name.Equals("fr-FR") Then
         newCulture = New CultureInfo("fr-LU")
      Else   
         newCulture = new CultureInfo("fr-FR")
      End If
      
      CultureInfo.CurrentCulture = newCulture
      Console.WriteLine("The current culture is now {0}", 
                        CultureInfo.CurrentCulture.Name)   
   End Sub
End Module
' The example displays output like the following:
'     The current culture is en-US
'     The current culture is now fr-FR

下列範例會抓取目前的文化特性。The following example retrieves the current culture. 如果是任何其他斯洛維尼亞文(斯洛維尼亞)文化特性,則會將目前文化特性變更為斯洛維尼亞文(斯洛維尼亞)。If it is anything other the Slovenian (Slovenia) culture, it changes the current culture to Slovenian (Slovenia). 否則,它會將目前的文化特性變更為克羅地亞(克羅地亞)。Otherwise, it changes the current culture to Croatian (Croatia).

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      CultureInfo current = CultureInfo.CurrentUICulture;
      Console.WriteLine("The current UI culture is {0}", current.Name);
      CultureInfo newUICulture;
      if (current.Name.Equals("sl-SI"))
         newUICulture = new CultureInfo("hr-HR");
      else   
         newUICulture = new CultureInfo("sl-SI");
      
      CultureInfo.CurrentUICulture = newUICulture;
      Console.WriteLine("The current UI culture is now {0}", 
                        CultureInfo.CurrentUICulture.Name);   
   }
}
// The example displays output like the following:
//     The current UI culture is en-US
//     The current UI culture is now sl-SI
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim current As CultureInfo = CultureInfo.CurrentUICulture
      Console.WriteLine("The current UI culture is {0}", current.Name)
      Dim newUICulture As CultureInfo
      If current.Name.Equals("sl-SI") Then
         newUICulture = New CultureInfo("hr-HR")
      Else   
         newUICulture = new CultureInfo("sl-SI")
      End If
      
      CultureInfo.CurrentUICulture = newUICulture
      Console.WriteLine("The current UI culture is now {0}", 
                        CultureInfo.CurrentUICulture.Name)   
   End Sub
End Module
' The example displays output like the following:
'     The current UI culture is en-US
'     The current UI culture is now sl-SI

取得所有文化特性Getting all cultures

您可以藉由呼叫 GetCultures 方法,來抓取陣列特定的文化特性分類,或本機電腦上可用的所有文化特性。You can retrieve an array specific categories of cultures or of all the cultures available on the local computer by calling the GetCultures method. 例如,您可以單獨或組合取得自訂文化特性、特定文化特性或中性文化特性。For example, you can retrieve custom cultures, specific cultures, or neutral cultures either alone or in combination.

下列範例會呼叫 GetCultures 方法兩次,先使用 System.Globalization.CultureTypes 列舉成員來抓取所有自訂文化特性,然後使用 System.Globalization.CultureTypes 列舉成員來抓取所有取代文化特性。The following example calls the GetCultures method twice, first with the System.Globalization.CultureTypes enumeration member to retrieve all custom cultures, and then with the System.Globalization.CultureTypes enumeration member to retrieve all replacement cultures.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      // Get all custom cultures.
      CultureInfo[] custom = CultureInfo.GetCultures(CultureTypes.UserCustomCulture);
      if (custom.Length == 0) { 
         Console.WriteLine("There are no user-defined custom cultures.");
      }
      else {
         Console.WriteLine("Custom cultures:");
         foreach (var culture in custom) 
            Console.WriteLine("   {0} -- {1}", culture.Name, culture.DisplayName);    
      }
      Console.WriteLine();
      
      // Get all replacement cultures.
      CultureInfo[] replacements = CultureInfo.GetCultures(CultureTypes.ReplacementCultures);
      if (replacements.Length == 0) { 
         Console.WriteLine("There are no replacement cultures.");
      }                                             
      else {
         Console.WriteLine("Replacement cultures:");
         foreach (var culture in replacements) 
            Console.WriteLine("   {0} -- {1}", culture.Name, culture.DisplayName);    
      }
      Console.WriteLine();
   }
}
// The example displays output like the following:
//     Custom cultures:
//        x-en-US-sample -- English (United States)
//        fj-FJ -- Boumaa Fijian (Viti)
//     
//     There are no replacement cultures.
Imports System.Globalization

Module Example
   Public Sub Main()
      ' Get all custom cultures.
      Dim custom() As CultureInfo = CultureInfo.GetCultures(CultureTypes.UserCustomCulture)
      If custom.Length = 0 Then 
         Console.WriteLine("There are no user-defined custom cultures.")
      Else
         Console.WriteLine("Custom cultures:")
         For Each culture In custom 
            Console.WriteLine("   {0} -- {1}", culture.Name, culture.DisplayName)
         Next       
      End If
      Console.WriteLine()
      
      ' Get all replacement cultures.
      Dim replacements() As CultureInfo = CultureInfo.GetCultures(CultureTypes.ReplacementCultures)
      If replacements.Length = 0 Then 
         Console.WriteLine("There are no replacement cultures.")
      Else 
         Console.WriteLine("Replacement cultures:")
         For Each culture in replacements 
            Console.WriteLine("   {0} -- {1}", culture.Name, culture.DisplayName)    
         Next
      End If
      Console.WriteLine()
   End Sub
End Module
' The example displays output like the following:
'     Custom cultures:
'        x-en-US-sample -- English (United States)
'        fj-FJ -- Boumaa Fijian (Viti)
'     
'     There are no replacement cultures.

文化特性和執行緒Culture and threads

當新的應用程式執行緒啟動時,其目前的文化特性和目前的 UI 文化特性是由目前的系統文化特性所定義,而不是由目前的執行緒文化特性所定義。When a new application thread is started, its current culture and current UI culture are defined by the current system culture, and not by the current thread culture. 下列範例會說明其間的差異。The following example illustrates the difference. 它會將應用程式執行緒目前的文化特性和目前 UI 文化特性設定為法文(法國)文化特性(fr-fr)。It sets the current culture and current UI culture of an application thread to the French (France) culture (fr-FR). 如果目前的文化特性已經是 fr-fr,此範例會將它設定為英文(美國)文化特性(en-us)。If the current culture is already fr-FR, the example sets it to the English (United States) culture (en-US). 它會顯示三個亂數字做為貨幣值,然後建立新的執行緒,然後再將其他三個亂數顯示為貨幣值。It displays three random numbers as currency values and then creates a new thread, which, in turn, displays three more random numbers as currency values. 但如範例的輸出所示,新執行緒所顯示的貨幣值不會反映法文(法國)文化特性的格式設定慣例,不同于主應用程式執行緒的輸出。But as the output from the example shows, the currency values displayed by the new thread do not reflect the formatting conventions of the French (France) culture, unlike the output from the main application thread.

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   static Random rnd = new Random();
   
   public static void Main()
   {
      if (Thread.CurrentThread.CurrentCulture.Name != "fr-FR") {
         // If current culture is not fr-FR, set culture to fr-FR.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR");
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR");
      }
      else {
         // Set culture to en-US.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("en-US");
      }
      ThreadProc();
          
      Thread worker = new Thread(ThreadProc);
      worker.Name = "WorkerThread";
      worker.Start();
   }
   
   private static void DisplayThreadInfo()
   {
      Console.WriteLine("\nCurrent Thread Name: '{0}'", 
                        Thread.CurrentThread.Name);
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name);                        
   }
   
   private static void DisplayValues()
   {
      // Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:");
      for (int ctr = 0; ctr <= 3; ctr++)
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10);                        
   }
   
   private static void ThreadProc()
   {
      DisplayThreadInfo();
      DisplayValues();
   }
}
// The example displays output similar to the following:
//       Current Thread Name: ''
//       Current Thread Culture/UI Culture: fr-FR/fr-FR
//       Some currency values:
//          8,11 €
//          1,48 €
//          8,99 €
//          9,04 €
//       
//       Current Thread Name: 'WorkerThread'
//       Current Thread Culture/UI Culture: en-US/en-US
//       Some currency values:
//          $6.72
//          $6.35
//          $2.90
//          $7.72
Imports System.Globalization
Imports System.Threading

Module Example
   Dim rnd As New Random()
   
   Public Sub Main()
      If Thread.CurrentThread.CurrentCulture.Name <> "fr-FR" Then
         ' If current culture is not fr-FR, set culture to fr-FR.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR")
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR")
      Else
         ' Set culture to en-US.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US")
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("en-US")
      End If
      ThreadProc()
          
       Dim worker As New Thread(AddressOf ThreadProc)
       worker.Name = "WorkerThread"
       worker.Start()
   End Sub
   
   Private Sub DisplayThreadInfo()
      Console.WriteLine()
      Console.WriteLine("Current Thread Name: '{0}'", 
                        Thread.CurrentThread.Name)
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name)                        
   End Sub
   
   Private Sub DisplayValues()
      ' Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:")
      For ctr As Integer = 0 To 3
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10)                        
      Next
   End Sub
   
   Private Sub ThreadProc()
      DisplayThreadInfo()
      DisplayValues()
   End Sub
End Module
' The example displays output similar to the following:
'       Current Thread Name: ''
'       Current Thread Culture/UI Culture: fr-FR/fr-FR
'       Some currency values:
'          8,11 €
'          1,48 €
'          8,99 €
'          9,04 €
'       
'       Current Thread Name: 'WorkerThread'
'       Current Thread Culture/UI Culture: en-US/en-US
'       Some currency values:
'          $6.72
'          $6.35
'          $2.90
'          $7.72

.NET Framework 4.5.NET Framework 4.5之前的 .NET Framework 版本中,確保主要應用程式執行緒與所有其他背景工作執行緒共用相同文化特性的最常見方式是傳遞應用程式範圍的文化特性名稱或代表的 CultureInfo 物件System.Threading.ParameterizedThreadStart 委派的整個應用程式文化特性。In versions of the .NET Framework before the .NET Framework 4.5.NET Framework 4.5, the most common way to ensure that the main application thread shares the same culture with all other worker threads is to pass either the name of the application-wide culture or a CultureInfo object that represents the application-wide culture to a System.Threading.ParameterizedThreadStart delegate. 下列範例會使用這種方法,以確保由兩個執行緒顯示的貨幣值反映相同文化特性的格式設定慣例。The following example uses this approach to ensure that the currency values displayed by two threads reflect the formatting conventions of the same culture.

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   static Random rnd = new Random();
   
   public static void Main()
   {
      if (Thread.CurrentThread.CurrentCulture.Name != "fr-FR") {
         // If current culture is not fr-FR, set culture to fr-FR.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR");
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR");
      }   
      else {
         // Set culture to en-US.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("en-US");
      }
      DisplayThreadInfo();
      DisplayValues();
          
       Thread worker = new Thread(Example.ThreadProc);
       worker.Name = "WorkerThread";
       worker.Start(Thread.CurrentThread.CurrentCulture);
   }
   
   private static void DisplayThreadInfo()
   {
      Console.WriteLine("\nCurrent Thread Name: '{0}'", 
                        Thread.CurrentThread.Name);
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name);                        
   }
   
   private static void DisplayValues()
   {
      // Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:");
      for (int ctr = 0; ctr <= 3; ctr++)
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10);                        
   }
   
   private static void ThreadProc(Object obj) 
   {
      Thread.CurrentThread.CurrentCulture = (CultureInfo) obj;
      Thread.CurrentThread.CurrentUICulture = (CultureInfo) obj;
      DisplayThreadInfo();
      DisplayValues();
   }
}
// The example displays output similar to the following:
//       Current Thread Name: ''
//       Current Thread Culture/UI Culture: fr-FR/fr-FR
//       Some currency values:
//          6,83 €
//          3,47 €
//          6,07 €
//          1,70 €
//       
//       Current Thread Name: 'WorkerThread'
//       Current Thread Culture/UI Culture: fr-FR/fr-FR
//       Some currency values:
//          9,54 €
//          9,50 €
//          0,58 €
//          6,91 €
Imports System.Globalization
Imports System.Threading

Module Example
   Dim rnd As New Random()
   
   Public Sub Main()
      If Thread.CurrentThread.CurrentCulture.Name <> "fr-FR" Then
         ' If current culture is not fr-FR, set culture to fr-FR.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR")
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR")
      Else
         ' Set culture to en-US.
         Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US")
         Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture("en-US")
      End If
      DisplayThreadInfo()
      DisplayValues()
          
       Dim worker As New Thread(AddressOf ThreadProc)
       worker.Name = "WorkerThread"
       worker.Start(Thread.CurrentThread.CurrentCulture)
   End Sub
   
   Private Sub DisplayThreadInfo()
      Console.WriteLine()
      Console.WriteLine("Current Thread Name: '{0}'", 
                        Thread.CurrentThread.Name)
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name)                        
   End Sub
   
   Private Sub DisplayValues()
      ' Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:")
      For ctr As Integer = 0 To 3
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10)                        
      Next
   End Sub
   
   Private Sub ThreadProc(obj As Object)
      Thread.CurrentThread.CurrentCulture = CType(obj, CultureInfo)
      Thread.CurrentThread.CurrentUICulture = CType(obj, CultureInfo)
      DisplayThreadInfo()
      DisplayValues()
   End Sub
End Module
' The example displays output similar to the following:
'       Current Thread Name: ''
'       Current Thread Culture/UI Culture: fr-FR/fr-FR
'       Some currency values:
'          6,83 €
'          3,47 €
'          6,07 €
'          1,70 €
'       
'       Current Thread Name: 'WorkerThread'
'       Current Thread Culture/UI Culture: fr-FR/fr-FR
'       Some currency values:
'          9,54 €
'          9,50 €
'          0,58 €
'          6,91 €

您可以藉由呼叫 ThreadPool.QueueUserWorkItem(WaitCallback, Object) 方法,以類似的方式設定執行緒集區執行緒的文化特性和 UI 文化特性。You can set the culture and UI culture of thread pool threads in a similar manner by calling the ThreadPool.QueueUserWorkItem(WaitCallback, Object) method.

.NET Framework 4.5.NET Framework 4.5開始,您可以將代表該文化特性的 CultureInfo 物件指派給 DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性,以更直接地設定應用程式域中所有線程的文化特性和 UI 文化特性。Starting with the .NET Framework 4.5.NET Framework 4.5, you can set the culture and UI culture of all threads in an application domain more directly by assigning a CultureInfo object that represents that culture to the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties. 下列範例會使用這些屬性來確保預設應用程式域中的所有線程都共用相同的文化特性。The following example uses these properties to ensure that all threads in the default application domain share the same culture.

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   static Random rnd = new Random();
   
   public static void Main()
   {
      if (Thread.CurrentThread.CurrentCulture.Name != "fr-FR") {
         // If current culture is not fr-FR, set culture to fr-FR.
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR");
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR");
      }   
      else {
         // Set culture to en-US.
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture("en-US");
      }
      ThreadProc();
          
      Thread worker = new Thread(Example.ThreadProc);
      worker.Name = "WorkerThread";
      worker.Start();
   }
   
   private static void DisplayThreadInfo()
   {
      Console.WriteLine("\nCurrent Thread Name: '{0}'", 
                        Thread.CurrentThread.Name);
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name);                        
   }
   
   private static void DisplayValues()
   {
      // Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:");
      for (int ctr = 0; ctr <= 3; ctr++)
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10);                        
   }
   
   private static void ThreadProc() 
   {
      DisplayThreadInfo();
      DisplayValues();
   }
}
// The example displays output similar to the following:
//       Current Thread Name: ''
//       Current Thread Culture/UI Culture: fr-FR/fr-FR
//       Some currency values:
//          6,83 €
//          3,47 €
//          6,07 €
//          1,70 €
//       
//       Current Thread Name: 'WorkerThread'
//       Current Thread Culture/UI Culture: fr-FR/fr-FR
//       Some currency values:
//          9,54 €
//          9,50 €
//          0,58 €
//          6,91 €
Imports System.Globalization
Imports System.Threading

Module Example
   Dim rnd As New Random()
   
   Public Sub Main()
      If Thread.CurrentThread.CurrentCulture.Name <> "fr-FR" Then
         ' If current culture is not fr-FR, set culture to fr-FR.
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture("fr-FR")
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture("fr-FR")
      Else
         ' Set culture to en-US.
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture("en-US")
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture("en-US")
      End If
      ThreadProc()

       Dim worker As New Thread(AddressOf ThreadProc)
       worker.Name = "WorkerThread"
       worker.Start()
   End Sub
   
   Private Sub DisplayThreadInfo()
      Console.WriteLine()
      Console.WriteLine("Current Thread Name: '{0}'", 
                        Thread.CurrentThread.Name)
      Console.WriteLine("Current Thread Culture/UI Culture: {0}/{1}", 
                        Thread.CurrentThread.CurrentCulture.Name,
                        Thread.CurrentThread.CurrentUICulture.Name)                        
   End Sub
   
   Private Sub DisplayValues()
      ' Create new thread and display three random numbers.
      Console.WriteLine("Some currency values:")
      For ctr As Integer = 0 To 3
         Console.WriteLine("   {0:C2}", rnd.NextDouble() * 10)                        
      Next
   End Sub
   
   Private Sub ThreadProc()
      DisplayThreadInfo()
      DisplayValues()
   End Sub
End Module
' The example displays output similar to the following:
'       Current Thread Name: ''
'       Current Thread Culture/UI Culture: fr-FR/fr-FR
'       Some currency values:
'          6,83 €
'          3,47 €
'          6,07 €
'          1,70 €
'       
'       Current Thread Name: 'WorkerThread'
'       Current Thread Culture/UI Culture: fr-FR/fr-FR
'       Some currency values:
'          9,54 €
'          9,50 €
'          0,58 €
'          6,91 €

警告

雖然 DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性是靜態成員,但它們只會針對在設定這些屬性值時的最新應用程式域,定義預設文化特性和預設 UI 文化特性。Although the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties are static members, they define the default culture and default UI culture only for the application domain that is current at the time these property values are set. 如需詳細資訊,請參閱下一節:文化特性和應用程式域For more information, see the next section, Culture and application domains.

當您將值指派給 DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性時,應用程式域中線程的文化特性和 UI 文化特性也會變更,如果它們尚未明確指派給文化特性。When you assign values to the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties, the culture and UI culture of the threads in the application domain also change if they have not explicitly been assigned a culture. 不過,這些執行緒只有在目前的應用程式域中執行時,才會反映新的文化特性設定。However, these threads reflect the new culture settings only while they execute in the current application domain. 如果這些執行緒在另一個應用程式域中執行,其文化特性會變成針對該應用程式域定義的預設文化特性。If these threads execute in another application domain, their culture becomes the default culture defined for that application domain. 因此,我們建議您一律設定主應用程式執行緒的文化特性,而不要依賴 DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性來加以變更。As a result, we recommend that you always set the culture of the main application thread, and not rely on the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties to change it.

文化特性和應用程式域Culture and application domains

DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 是靜態屬性,只有在設定或抓取屬性值時,才會針對目前的應用程式域明確定義預設文化特性。DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture are static properties that explicitly define a default culture only for the application domain that is current when the property value is set or retrieved. 下列範例會將預設應用程式域中的預設文化特性和預設 UI 文化特性設定為法文(法國),然後使用 AppDomainSetup 類別和 AppDomainInitializer 委派,將新應用程式域中的預設文化特性和 UI 文化特性設定為俄文(俄羅斯)。The following example sets the default culture and default UI culture in the default application domain to French (France), and then uses the AppDomainSetup class and the AppDomainInitializer delegate to set the default culture and UI culture in a new application domain to Russian (Russia). 然後,單一執行緒會在每個應用程式域中執行兩個方法。A single thread then executes two methods in each application domain. 請注意,執行緒的文化特性和 UI 文化特性並未明確設定;它們是從執行緒執行所在之應用程式域的預設文化特性和 UI 文化特性衍生而來。Note that the thread's culture and UI culture are not explicitly set; they are derived from the default culture and UI culture of the application domain in which the thread is executing. 另請注意,DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性會傳回進行方法呼叫時,目前的應用程式域的預設 CultureInfo 值。Note also that the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties return the default CultureInfo values of the application domain that is current when the method call is made.

using System;
using System.Globalization;
using System.Reflection;
using System.Threading;

public class Example
{
   public static void Main()
   {
      // Set the default culture and display the current date in the current application domain.
      Info info1 = new Info();
      SetAppDomainCultures("fr-FR");
      
      // Create a second application domain.
      AppDomainSetup setup = new AppDomainSetup();
      setup.AppDomainInitializer = SetAppDomainCultures;
      setup.AppDomainInitializerArguments = new string[] { "ru-RU" };
      AppDomain domain = AppDomain.CreateDomain("Domain2", null, setup);
      // Create an Info object in the new application domain.
      Info info2 = (Info) domain.CreateInstanceAndUnwrap(typeof(Example).Assembly.FullName, 
                                                         "Info"); 

      // Execute methods in the two application domains.
      info2.DisplayDate();
      info2.DisplayCultures();
      
      info1.DisplayDate();
      info1.DisplayCultures();            
   }

   public static void SetAppDomainCultures(string[] names)
   {
      SetAppDomainCultures(names[0]);
   }
   
   public static void SetAppDomainCultures(string name)
   {
       try {
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture(name);
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture(name);
      }
      // If an exception occurs, we'll just fall back to the system default.
      catch (CultureNotFoundException) {
         return;
      }   
      catch (ArgumentException) {
         return;
      } 
   }
}

public class Info : MarshalByRefObject
{
   public void DisplayDate()
   {
      Console.WriteLine("Today is {0:D}", DateTime.Now);
   }
   
   public void DisplayCultures()
   {
      Console.WriteLine("Application domain is {0}", AppDomain.CurrentDomain.Id);
      Console.WriteLine("Default Culture: {0}", CultureInfo.DefaultThreadCurrentCulture);
      Console.WriteLine("Default UI Culture: {0}", CultureInfo.DefaultThreadCurrentUICulture);
   }
}
// The example displays the following output:
//       Today is 14 октября 2011 г.
//       Application domain is 2
//       Default Culture: ru-RU
//       Default UI Culture: ru-RU
//       Today is vendredi 14 octobre 2011
//       Application domain is 1
//       Default Culture: fr-FR
//       Default UI Culture: fr-FR
Imports System.Globalization
Imports System.Reflection
Imports System.Threading

Module Example
   Public Sub Main()
      ' Set the default culture and display the current date in the current application domain.
      Dim info1 As New Info()
      SetAppDomainCultures("fr-FR")
      
      ' Create a second application domain.
      Dim setup As New AppDomainSetup()
      setup.AppDomainInitializer = AddressOf SetAppDomainCultures
      setup.AppDomainInitializerArguments = { "ru-RU" }
      Dim domain As AppDomain = AppDomain.CreateDomain("Domain2", Nothing, setup)
      ' Create an Info object in the new application domain.
      Dim info2 As Info = CType(domain.CreateInstanceAndUnwrap(GetType(Example).Assembly.FullName, 
                                                               "Info"), Info) 

      ' Execute methods in the two application domains.
      info2.DisplayDate()
      info2.DisplayCultures()
      
      info1.DisplayDate()
      info1.DisplayCultures()            
   End Sub
   
   Public Sub SetAppDomainCultures(names() As String)
      SetAppDomainCultures(names(0))
   End Sub
   
   Public Sub SetAppDomainCultures(name As String)
       Try
         CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CreateSpecificCulture(name)
         CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.CreateSpecificCulture(name)
      ' If an exception occurs, we'll just fall back to the system default.
      Catch e As CultureNotFoundException
         Return
      Catch e As ArgumentException
         Return
      End Try      
   End Sub
End Module

Public Class Info : Inherits MarshalByRefObject
   Public Sub DisplayDate()
      Console.WriteLine("Today is {0:D}", Date.Now)
   End Sub
   
   Public Sub DisplayCultures()
      Console.WriteLine("Application domain is {0}", AppDomain.CurrentDomain.Id)
      Console.WriteLine("Default Culture: {0}", CultureInfo.DefaultThreadCurrentCulture)
      Console.WriteLine("Default UI Culture: {0}", CultureInfo.DefaultThreadCurrentUICulture)
   End Sub
End Class
' The example displays the following output:
'       Today is 14 октября 2011 г.
'       Application domain is 2
'       Default Culture: ru-RU
'       Default UI Culture: ru-RU
'       Today is vendredi 14 octobre 2011
'       Application domain is 1
'       Default Culture: fr-FR
'       Default UI Culture: fr-FR

如需文化特性和應用程式域的詳細資訊,請參閱應用程式域主題中的「應用程式域和執行緒」一節。For more information about cultures and application domains, see the "Application Domains and Threads" section in the Application Domains topic.

文化特性和以工作為基礎的非同步作業Culture and task-based asynchronous operations

以工作為基礎的非同步程式設計模式會使用 TaskTask<TResult> 物件,以非同步方式線上程集區執行緒上執行委派。The task-based asynchronous programming pattern uses Task and Task<TResult> objects to asynchronously execute delegates on thread pool threads. 特定工作執行所在的特定執行緒並不事先知道,只是在執行時間決定。The specific thread on which a particular task runs is not known in advance, but is determined only at runtime.

針對以 .NET Framework 4.6.NET Framework 4.6 或更新版本為目標的應用程式,文化特性是非同步作業內容的一部分。For apps that target the .NET Framework 4.6.NET Framework 4.6 or later versions, culture is part of an asynchronous operation's context. 換句話說,從以 .NET Framework 4.6.NET Framework 4.6為目標的應用程式開始,非同步作業預設會繼承其啟動所在之執行緒的 CurrentCultureCurrentUICulture 屬性值。In other words, starting with apps that target the .NET Framework 4.6.NET Framework 4.6, asynchronous operations by default inherit the values of the CurrentCulture and CurrentUICulture properties of the thread from which they are launched. 如果目前的文化特性或目前的 UI 文化特性與系統文化特性不同,目前的文化特性會跨越執行緒界限,並成為執行非同步作業之執行緒集區執行緒的目前文化特性。If the current culture or current UI culture differs from the system culture, the current culture crosses thread boundaries and becomes the current culture of the thread pool thread that is executing an asynchronous operation.

下列範例提供一個簡單的範例。The following example provides a simple illustration. 它會使用 TargetFrameworkAttribute 屬性,以 .NET Framework 4.6.NET Framework 4.6為目標。It uses the TargetFrameworkAttribute attribute to target the .NET Framework 4.6.NET Framework 4.6. 此範例會定義 Func<TResult> 委派,formatDelegate,其會傳回格式化為貨幣值的一些數位。The example defines a Func<TResult> delegate, formatDelegate, that returns some numbers formatted as currency values. 這個範例會將目前的系統文化特性變更為法文(法國),如果法文(法國)已經是目前的文化特性,則是英文(美國)。The example changes the current system culture to either French (France) or, if French (France) is already the current culture, English (United States). 然後:It then:

  • 直接叫用委派,使其在主應用程式執行緒上以同步方式執行。Invokes the delegate directly so that it runs synchronously on the main app thread.

  • 建立線上程集區執行緒上以非同步方式執行委派的工作。Creates a task that executes the delegate asynchronously on a thread pool thread.

  • 藉由呼叫 Task.RunSynchronously 方法,建立在主應用程式執行緒上同步執行委派的工作。Creates a task that executes the delegate synchronously on the main app thread by calling the Task.RunSynchronously method.

如範例的輸出所示,當目前的文化特性變更為法文(法國)時,以非同步方式叫用工作之執行緒的目前文化特性會成為該非同步作業的目前文化特性。As the output from the example shows, when the current culture is changed to French (France), the current culture of the thread from which tasks are invoked asynchronously becomes the current culture for that asynchronous operation.

using System;
using System.Globalization;
using System.Runtime.Versioning;
using System.Threading;
using System.Threading.Tasks;

[assembly:TargetFramework(".NETFramework,Version=v4.6")]

public class Example
{
   
   public static void Main()
   {
       decimal[] values = { 163025412.32m, 18905365.59m };
       string formatString = "C2";
       Func<String> formatDelegate = () => { string output = String.Format("Formatting using the {0} culture on thread {1}.\n",
                                                                           CultureInfo.CurrentCulture.Name,
                                                                           Thread.CurrentThread.ManagedThreadId);
                                             foreach (var value in values)
                                                output += String.Format("{0}   ", value.ToString(formatString));
                                                   
                                             output += Environment.NewLine;
                                             return output;
                                           };
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId);
       // Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name);
       if (CultureInfo.CurrentCulture.Name == "fr-FR")
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
       else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");

       Console.WriteLine("Changed the current culture to {0}.\n",
                         CultureInfo.CurrentCulture.Name);
       
       // Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:");
       Console.WriteLine(formatDelegate());
       
       // Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:"); 
       var t1 = Task.Run(formatDelegate);
       Console.WriteLine(t1.Result);
       
       Console.WriteLine("Executing a task synchronously:");
       var t2 = new Task<String>(formatDelegate); 
       t2.RunSynchronously();
       Console.WriteLine(t2.Result);
   }
}
// The example displays the following output:
//         The example is running on thread 1
//         The current culture is en-US
//         Changed the current culture to fr-FR.
//
//         Executing the delegate synchronously:
//         Formatting using the fr-FR culture on thread 1.
//         163 025 412,32 €   18 905 365,59 €
//
//         Executing a task asynchronously:
//         Formatting using the fr-FR culture on thread 3.
//         163 025 412,32 €   18 905 365,59 €
//
//         Executing a task synchronously:
//         Formatting using the fr-FR culture on thread 1.
//         163 025 412,32 €   18 905 365,59 €
Imports System.Globalization
Imports System.Runtime.Versioning
Imports System.Threading
Imports System.Threading.Tasks

<Assembly:TargetFramework(".NETFramework,Version=v4.6")>

Module Example
   Public Sub Main()
       Dim values() As Decimal = { 163025412.32d, 18905365.59d }
       Dim formatString As String = "C2"
       Dim formatDelegate As Func(Of String) = Function()
                                                  Dim output As String = String.Format("Formatting using the {0} culture on thread {1}.",
                                                                                       CultureInfo.CurrentCulture.Name,
                                                                                       Thread.CurrentThread.ManagedThreadId)
                                                  output += Environment.NewLine
                                                  For Each value In values
                                                     output += String.Format("{0}   ", value.ToString(formatString))
                                                  Next 
                                                  output += Environment.NewLine
                                                  Return output
                                               End Function
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId)
       ' Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name)
       If CultureInfo.CurrentCulture.Name = "fr-FR" Then
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US")
       Else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR")
       End If
       Console.WriteLine("Changed the current culture to {0}.",
                         CultureInfo.CurrentCulture.Name)
       Console.WriteLine()                  
       
       ' Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:")
       Console.WriteLine(formatDelegate())
       
       ' Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:") 
       Dim t1 = Task.Run(formatDelegate)
       Console.WriteLine(t1.Result)
       
       Console.WriteLine("Executing a task synchronously:")
       Dim t2 = New Task(Of String)(formatDelegate) 
       t2.RunSynchronously()
       Console.WriteLine(t2.Result)
   End Sub
End Module
' The example displays the following output:
'          The example is running on thread 1
'          The current culture is en-US
'          Changed the current culture to fr-FR.
'
'          Executing the delegate synchronously:
'          Formatting Imports the fr-FR culture on thread 1.
'          163 025 412,32 €   18 905 365,59 €
'
'          Executing a task asynchronously:
'          Formatting Imports the fr-FR culture on thread 3.
'          163 025 412,32 €   18 905 365,59 €
'
'          Executing a task synchronously:
'          Formatting Imports the fr-FR culture on thread 1.
'          163 025 412,32 €   18 905 365,59 €

若為以 .NET Framework 4.6.NET Framework 4.6之前的 .NET Framework 版本為目標的應用程式,或未以特定 .NET Framework 版本為目標的應用程式,則呼叫執行緒的文化特性不是工作內容的一部分。For apps that target versions of the .NET Framework prior to the .NET Framework 4.6.NET Framework 4.6, or for apps that do not target a particular version of the .NET Framework, the culture of the calling thread is not part of a task's context. 相反地,除非明確定義了一個,否則新執行緒的文化特性預設為系統文化特性。Instead, unless one is explicitly defined, the culture of new threads by default is the system culture. 下列範例與前一個範例相同,不同之處在于它缺少 TargetFrameworkAttribute 屬性,說明這一點。The following example, which is identical to the previous example except that it lacks the TargetFrameworkAttribute attribute, illustrates this. 因為執行範例之系統的系統文化特性是英文(美國),所以線上程集區執行緒上以非同步方式執行之工作的文化特性是 en-us,而不是 fr-FR。Because the system culture of the system on which the example executed was English (United States), the culture of the task that executes asynchronously on a thread pool thread is en-US rather than fr-FR.

using System;
using System.Globalization;
using System.Runtime.Versioning;
using System.Threading;
using System.Threading.Tasks;

public class Example
{
   public static void Main()
   {
       decimal[] values = { 163025412.32m, 18905365.59m };
       string formatString = "C2";
       Func<String> formatDelegate = () => { string output = String.Format("Formatting using the {0} culture on thread {1}.\n",
                                                                           CultureInfo.CurrentCulture.Name,
                                                                           Thread.CurrentThread.ManagedThreadId);
                                             foreach (var value in values)
                                                output += String.Format("{0}   ", value.ToString(formatString));
                                                   
                                             output += Environment.NewLine;
                                             return output;
                                           };
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId);
       // Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name);
       if (CultureInfo.CurrentCulture.Name == "fr-FR")
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
       else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");

       Console.WriteLine("Changed the current culture to {0}.\n",
                         CultureInfo.CurrentCulture.Name);
       
       // Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:");
       Console.WriteLine(formatDelegate());
       
       // Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:"); 
       var t1 = Task.Run(formatDelegate);
       Console.WriteLine(t1.Result);
       
       Console.WriteLine("Executing a task synchronously:");
       var t2 = new Task<String>(formatDelegate); 
       t2.RunSynchronously();
       Console.WriteLine(t2.Result);
   }
}
// The example displays the following output:
//     The example is running on thread 1
//     The current culture is en-US
//     Changed the current culture to fr-FR.
//     
//     Executing the delegate synchronously:
//     Formatting using the fr-FR culture on thread 1.
//     163 025 412,32 €   18 905 365,59 €
//     
//     Executing a task asynchronously:
//     Formatting using the en-US culture on thread 3.
//     $163,025,412.32   $18,905,365.59
//     
//     Executing a task synchronously:
//     Formatting using the fr-FR culture on thread 1.
//     163 025 412,32 €   18 905 365,59 €
Imports System.Globalization
Imports System.Runtime.Versioning
Imports System.Threading
Imports System.Threading.Tasks

Module Example
   Public Sub Main()
       Dim values() As Decimal = { 163025412.32d, 18905365.59d }
       Dim formatString As String = "C2"
       Dim formatDelegate As Func(Of String) = Function()
                                                  Dim output As String = String.Format("Formatting using the {0} culture on thread {1}.",
                                                                                       CultureInfo.CurrentCulture.Name,
                                                                                       Thread.CurrentThread.ManagedThreadId)
                                                  output += Environment.NewLine
                                                  For Each value In values
                                                     output += String.Format("{0}   ", value.ToString(formatString))
                                                  Next 
                                                  output += Environment.NewLine
                                                  Return output
                                               End Function
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId)
       ' Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name)
       If CultureInfo.CurrentCulture.Name = "fr-FR" Then
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US")
       Else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR")
       End If
       Console.WriteLine("Changed the current culture to {0}.",
                         CultureInfo.CurrentCulture.Name)
       Console.WriteLine()                  
       
       ' Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:")
       Console.WriteLine(formatDelegate())
       
       ' Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:") 
       Dim t1 = Task.Run(formatDelegate)
       Console.WriteLine(t1.Result)
       
       Console.WriteLine("Executing a task synchronously:")
       Dim t2 = New Task(Of String)(formatDelegate) 
       t2.RunSynchronously()
       Console.WriteLine(t2.Result)
   End Sub
End Module
' The example displays the following output:
'     The example is running on thread 1
'     The current culture is en-US
'     Changed the current culture to fr-FR.
'     
'     Executing the delegate synchronously:
'     Formatting using the fr-FR culture on thread 1.
'     163 025 412,32 €   18 905 365,59 €
'     
'     Executing a task asynchronously:
'     Formatting using the en-US culture on thread 3.
'     $163,025,412.32   $18,905,365.59
'     
'     Executing a task synchronously:
'     Formatting using the fr-FR culture on thread 1.
'     163 025 412,32 €   18 905 365,59 €

如果應用程式是以 .NET Framework 4.5.NET Framework 4.5 和更新版本的 .NET Framework 為目標,但在 .NET Framework 4.6.NET Framework 4.6之前,您可以使用 DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 屬性,確保呼叫執行緒的文化特性用於線上程集區上執行的非同步工作串接.For apps that target versions of the .NET Framework from the .NET Framework 4.5.NET Framework 4.5 and later but prior to the .NET Framework 4.6.NET Framework 4.6, you can use the DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture properties to ensure that the culture of the calling thread is used in asynchronous tasks that execute on thread pool threads. 下列範例與前一個範例相同,不同之處在于它會使用 DefaultThreadCurrentCulture 屬性,以確保執行緒集區執行緒與主應用程式執行緒具有相同的文化特性。The following example is identical to the previous example, except that it uses the DefaultThreadCurrentCulture property to ensure that thread pool threads have the same culture as the main app thread.

using System;
using System.Globalization;
using System.Runtime.Versioning;
using System.Threading;
using System.Threading.Tasks;

public class Example
{
   public static void Main()
   {
       decimal[] values = { 163025412.32m, 18905365.59m };
       string formatString = "C2";
       Func<String> formatDelegate = () => { string output = String.Format("Formatting using the {0} culture on thread {1}.\n",
                                                                           CultureInfo.CurrentCulture.Name,
                                                                           Thread.CurrentThread.ManagedThreadId);
                                             foreach (var value in values)
                                                output += String.Format("{0}   ", value.ToString(formatString));
                                                   
                                             output += Environment.NewLine;
                                             return output;
                                           };
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId);
       // Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name);
       if (CultureInfo.CurrentCulture.Name == "fr-FR")
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
       else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");

       Console.WriteLine("Changed the current culture to {0}.\n",
                         CultureInfo.CurrentCulture.Name);
       CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CurrentCulture;
       
       // Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:");
       Console.WriteLine(formatDelegate());
       
       // Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:"); 
       var t1 = Task.Run(formatDelegate);
       Console.WriteLine(t1.Result);
       
       Console.WriteLine("Executing a task synchronously:");
       var t2 = new Task<String>(formatDelegate); 
       t2.RunSynchronously();
       Console.WriteLine(t2.Result);
   }
}
// The example displays the following output:
//     The example is running on thread 1
//     The current culture is en-US
//     Changed the current culture to fr-FR.
//     
//     Executing the delegate synchronously:
//     Formatting using the fr-FR culture on thread 1.
//     163 025 412,32 €   18 905 365,59 €
//     
//     Executing a task asynchronously:
//     Formatting using the fr-FR culture on thread 3.
//     163 025 412,32 €   18 905 365,59 €
//     
//     Executing a task synchronously:
//     Formatting using the fr-FR culture on thread 1.
//     163 025 412,32 €   18 905 365,59 €
Imports System.Globalization
Imports System.Runtime.Versioning
Imports System.Threading
Imports System.Threading.Tasks

Module Example
   Public Sub Main()
       Dim values() As Decimal = { 163025412.32d, 18905365.59d }
       Dim formatString As String = "C2"
       Dim formatDelegate As Func(Of String) = Function()
                                                  Dim output As String = String.Format("Formatting using the {0} culture on thread {1}.",
                                                                                       CultureInfo.CurrentCulture.Name,
                                                                                       Thread.CurrentThread.ManagedThreadId)
                                                  output += Environment.NewLine
                                                  For Each value In values
                                                     output += String.Format("{0}   ", value.ToString(formatString))
                                                  Next 
                                                  output += Environment.NewLine
                                                  Return output
                                               End Function
       
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId)
       ' Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name)
       If CultureInfo.CurrentCulture.Name = "fr-FR" Then
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US")
       Else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR")
       End If
       Console.WriteLine("Changed the current culture to {0}.",
                         CultureInfo.CurrentCulture.Name)
       CultureInfo.DefaultThreadCurrentCulture = CultureInfo.CurrentCulture
       Console.WriteLine()                  
       
       ' Execute the delegate synchronously.
       Console.WriteLine("Executing the delegate synchronously:")
       Console.WriteLine(formatDelegate())
       
       ' Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously:") 
       Dim t1 = Task.Run(formatDelegate)
       Console.WriteLine(t1.Result)
       
       Console.WriteLine("Executing a task synchronously:")
       Dim t2 = New Task(Of String)(formatDelegate) 
       t2.RunSynchronously()
       Console.WriteLine(t2.Result)
   End Sub
End Module
' The example displays the following output:
'       The example is running on thread 1
'       The current culture is en-US
'       Changed the current culture to fr-FR.
'       
'       Executing the delegate synchronously:
'       Formatting using the fr-FR culture on thread 1.
'       163 025 412,32 €   18 905 365,59 €
'       
'       Executing a task asynchronously:
'       Formatting using the fr-FR culture on thread 3.
'       163 025 412,32 €   18 905 365,59 €
'       
'       Executing a task synchronously:
'       Formatting using the fr-FR culture on thread 1.
'       163 025 412,32 €   18 905 365,59 €

DefaultThreadCurrentCultureDefaultThreadCurrentUICulture 是每個應用程式網域屬性;也就是說,它們會針對未在特定應用程式域中明確指派文化特性的所有線程,建立預設的文化特性。DefaultThreadCurrentCulture and DefaultThreadCurrentUICulture are per-app domain properties; that is, they establish a default culture for all threads not explicitly assigned a culture in a specific application domain. 不過,針對以 .NET Framework 4.6.NET Framework 4.6 或更新版本為目標的應用程式,即使工作跨越應用程式域界限,呼叫執行緒的文化特性仍會保持為非同步工作內容的一部分。However, for apps that target the .NET Framework 4.6.NET Framework 4.6 or later, the culture of the calling thread remains part of an asynchronous task's context even if the task crosses app domain boundaries.

下列範例顯示呼叫執行緒的文化特性仍然是以工作為基礎的非同步作業的目前文化特性,即使工作執行的方法跨越應用程式域界限也一樣。The following example shows that the calling thread's culture remains the current culture of a task-based asynchronous operation even if the method that the task is executing crosses application domain boundaries. 它會定義一個類別,DataRetriever,其中包含單一方法,GetFormattedNumber,它會傳回1到1000之間的隨機雙精確度浮點數,並將其格式化為貨幣值。It defines a class, DataRetriever, with a single method, GetFormattedNumber, that returns a random double-precision floating-point number between 1 and 1,000 formatted as a currency value. 執行第一個工作,只會具現化 DataRetriever 實例,並呼叫其 GetFormattedNumber 方法。A first task is run that simply instantiates a DataRetriever instance and calls its GetFormattedNumber method. 第二個工作會報告其目前的應用程式域、建立新的應用程式域、將新應用程式域中的 DataRetriever 實例具現化,並呼叫其 GetFormattedNumber 方法。A second task reports its current application domain, creates a new application domain, instantiates a DataRetriever instance in the new application domain, and calls its GetFormattedNumber method. 如範例的輸出所示,目前的文化特性在呼叫執行緒、第一個工作和第二個工作在主要應用程式域和第二個應用程式域中執行時保持不變。As the output from the example shows, the current culture has remained the same in the calling thread, the first task, and the second task both when it was executing in the main application domain and the second application domain.

using System;
using System.Globalization;
using System.Runtime.Versioning;
using System.Threading;
using System.Threading.Tasks;

[assembly:TargetFramework(".NETFramework,Version=v4.6")]

public class Example
{
   public static void Main()
   {
       string formatString = "C2";
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId);
       // Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name);
       if (CultureInfo.CurrentCulture.Name == "fr-FR")
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
       else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");

       Console.WriteLine("Changed the current culture to {0}.\n",
                         CultureInfo.CurrentCulture.Name);
       
       // Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously in the main appdomain:"); 
       var t1 = Task.Run(() => { DataRetriever d = new DataRetriever();
                                 return d.GetFormattedNumber(formatString);
                               });
       Console.WriteLine(t1.Result);
       Console.WriteLine(); 
       
       Console.WriteLine("Executing a task synchronously in two appdomains:");
       var t2 = Task.Run(() => { Console.WriteLine("Thread {0} is running in app domain '{1}'", 
                                                   Thread.CurrentThread.ManagedThreadId, 
                                                   AppDomain.CurrentDomain.FriendlyName);
                                 AppDomain domain = AppDomain.CreateDomain("Domain2");
                                 DataRetriever d = (DataRetriever) domain.CreateInstanceAndUnwrap(typeof(Example).Assembly.FullName,
                                                   "DataRetriever");
                                 return d.GetFormattedNumber(formatString); 
                               }); 
       Console.WriteLine(t2.Result);
   }
}

public class DataRetriever : MarshalByRefObject
{
   public string GetFormattedNumber(String format)
   {
      Thread thread = Thread.CurrentThread;
      Console.WriteLine("Current culture is {0}", thread.CurrentCulture);
      Console.WriteLine("Thread {0} is running in app domain '{1}'", 
                        thread.ManagedThreadId, 
                        AppDomain.CurrentDomain.FriendlyName);
      Random rnd = new Random();
      Double value = rnd.NextDouble() * 1000;
      return value.ToString(format);
   }
}
// The example displays output like the following:
//     The example is running on thread 1
//     The current culture is en-US
//     Changed the current culture to fr-FR.
//     
//     Executing a task asynchronously in a single appdomain:
//     Current culture is fr-FR
//     Thread 3 is running in app domain 'AsyncCulture4.exe'
//     93,48 €
//     
//     Executing a task synchronously in two appdomains:
//     Thread 4 is running in app domain 'AsyncCulture4.exe'
//     Current culture is fr-FR
//     Thread 4 is running in app domain 'Domain2'
//     288,66 €
Imports System.Globalization
Imports System.Runtime.Versioning
Imports System.Threading
Imports System.Threading.Tasks

<Assembly:TargetFramework(".NETFramework,Version=v4.6")>

Module Example
   Public Sub Main()
       Dim formatString As String = "C2"
       Console.WriteLine("The example is running on thread {0}", 
                         Thread.CurrentThread.ManagedThreadId)
       ' Make the current culture different from the system culture.
       Console.WriteLine("The current culture is {0}", 
                         CultureInfo.CurrentCulture.Name)
       If CultureInfo.CurrentCulture.Name = "fr-FR" Then
          Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US")
       Else
          Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR")
       End If

       Console.WriteLine("Changed the current culture to {0}.",
                         CultureInfo.CurrentCulture.Name)
       Console.WriteLine()
       
       ' Call an async delegate to format the values using one format string.
       Console.WriteLine("Executing a task asynchronously in the main appdomain:") 
       Dim t1 = Task.Run(Function()
                            Dim d As New DataRetriever()
                            Return d.GetFormattedNumber(formatString)
                         End Function)
       Console.WriteLine(t1.Result)
       Console.WriteLine() 
       
       Console.WriteLine("Executing a task synchronously in two appdomains:")
       Dim t2 = Task.Run(Function()
                            Console.WriteLine("Thread {0} is running in app domain '{1}'", 
                                              Thread.CurrentThread.ManagedThreadId, 
                                              AppDomain.CurrentDomain.FriendlyName)
                            Dim domain As AppDomain = AppDomain.CreateDomain("Domain2")
                            Dim d As DataRetriever = CType(domain.CreateInstanceAndUnwrap(GetType(Example).Assembly.FullName,
                                                                                          "DataRetriever"), DataRetriever)
                            Return d.GetFormattedNumber(formatString) 
                         End Function) 
       Console.WriteLine(t2.Result)
   End Sub
End Module

Public Class DataRetriever : Inherits MarshalByRefObject
   Public Function GetFormattedNumber(format As String) As String
      Dim thread As Thread = Thread.CurrentThread
      Console.WriteLine("Current culture is {0}", thread.CurrentCulture)
      Console.WriteLine("Thread {0} is running in app domain '{1}'", 
                        thread.ManagedThreadId, 
                        AppDomain.CurrentDomain.FriendlyName)
      Dim rnd As New Random()
      Dim value As Double = rnd.NextDouble() * 1000
      Return value.ToString(format)
   End Function
End Class
' The example displays output like the following:
'     The example is running on thread 1
'     The current culture is en-US
'     Changed the current culture to fr-FR.
'     
'     Executing a task asynchronously in a single appdomain:
'     Current culture is fr-FR
'     Thread 3 is running in app domain 'AsyncCulture4.exe'
'     93,48 €
'     
'     Executing a task synchronously in two appdomains:
'     Thread 4 is running in app domain 'AsyncCulture4.exe'
'     Current culture is fr-FR
'     Thread 4 is running in app domain 'Domain2'
'     288,66 €

CultureInfo 物件序列化CultureInfo object serialization

CultureInfo 物件序列化時,實際上儲存的所有都會 NameUseUserOverrideWhen a CultureInfo object is serialized, all that is actually stored is Name and UseUserOverride. 只有在 Name 具有相同意義的環境中,才會成功將它還原序列化。It is successfully de-serialized only in an environment where that Name has the same meaning. 下列三個範例顯示為何不一定會發生這種情況:The following three examples show why this is not always the case:

  • 如果 CultureTypes 屬性值 CultureTypes.InstalledWin32Cultures,而且該文化特性首次在特定版本的 Windows 作業系統中引進,則無法在舊版 Windows 上還原序列化。If the CultureTypes property value is CultureTypes.InstalledWin32Cultures, and if that culture was first introduced in a particular version of the Windows operating system, it is not possible to deserialize it on an earlier version of Windows. 例如,如果文化特性是在 Windows 10 中引進,它就無法在 Windows 8 上還原序列化。For example, if a culture was introduced in Windows 10, it cannot be deserialized on Windows 8.

  • 如果 CultureTypes 值是 CultureTypes.UserCustomCulture,而它被取消序列化的電腦並未安裝此使用者自訂文化特性,就無法將它還原序列化。If the CultureTypes value is CultureTypes.UserCustomCulture, and the computer on which it is de-serialized does not have this user custom culture installed, it is not possible to deserialize it.

  • 如果 CultureTypes 值是 CultureTypes.ReplacementCultures,而還原序列化的電腦沒有這個取代文化特性,則會將它還原序列化為相同的名稱,但不是所有相同的特性。If the CultureTypes value is CultureTypes.ReplacementCultures, and the computer on which it is de-serialized does not have this replacement culture, it de-serializes to the same name, but not all of the same characteristics. 例如,如果 en-us 是電腦 A 上的取代文化特性,而不是在電腦 B 上,且在電腦 A 上序列化參考此文化特性的 CultureInfo 物件,並在電腦 B 上將其還原序列化,則不會傳送任何文化特性的自訂特性。For example, if en-US is a replacement culture on computer A, but not on computer B, and if a CultureInfo object referring to this culture is serialized on computer A and de-serialized on computer B, then none of the custom characteristics of the culture are transmitted. 文化特性已成功還原序列化,但有不同的意義。The culture deserializes successfully, but with a different meaning.

控制台覆寫Control Panel overrides

使用者可以選擇透過 [控制台] 的 [地區及語言選項] 部分,覆寫與 Windows 目前文化特性相關聯的一些值。The user might choose to override some of the values associated with the current culture of Windows through the regional and language options portion of Control Panel. 例如,使用者可能會選擇以不同的格式來顯示日期,或使用文化特性的預設值以外的貨幣。For example, the user might choose to display the date in a different format or to use a currency other than the default for the culture. 一般來說,您的應用程式應該遵守這些使用者覆寫。In general, your applications should honor these user overrides.

如果 UseUserOverridetrue 而且指定的文化特性與目前的 Windows 文化特性相符,則 CultureInfo 會使用這些覆寫,包括 DateTimeFormat 屬性所傳回之 DateTimeFormatInfo 實例屬性的使用者設定,以及 @no__ 的屬性。NumberFormat 屬性所傳回的 t_5_ 實例。NumberFormatInfoIf UseUserOverride is true and the specified culture matches the current culture of Windows, the CultureInfo uses those overrides, including user settings for the properties of the DateTimeFormatInfo instance returned by the DateTimeFormat property, and the properties of the NumberFormatInfo instance returned by the NumberFormat property. 如果使用者設定與 CultureInfo相關聯的文化特性不相容,例如,如果選取的行事曆不是其中一個 OptionalCalendars,則方法的結果和屬性的值會是未定義的。If the user settings are incompatible with the culture associated with the CultureInfo, for example, if the selected calendar is not one of the OptionalCalendars, the results of the methods and the values of the properties are undefined.

替代排序次序Alternate sort orders

某些文化特性支援一個以上的排序次序。Some cultures support more than one sort order. 例如:For example:

  • 西班牙文(西班牙)文化特性有兩個排序次序:預設的國際排序次序和傳統排序次序。The Spanish (Spain) culture has two sort orders: the default international sort order, and the traditional sort order. 當您具現化具有 es 文化特性名稱的 CultureInfo 物件時,會使用國際排序次序。When you instantiate a CultureInfo object with the es-ES culture name, the international sort order is used. 當您具現化具有 es tradnl 文化特性名稱的 CultureInfo 物件時,會使用傳統的排序次序。When you instantiate a CultureInfo object with the es-ES-tradnl culture name, the traditional sort order is used.

  • Zh-CN (中文(簡體,中華人民共和國))文化特性支援兩種排序次序:依發音(預設值)和依筆劃計數。The zh-CN (Chinese (Simplified, PRC)) culture supports two sort orders: by pronunciation (the default) and by stroke count. 當您使用 zh-CN 文化特性名稱具現化 CultureInfo 物件時,會使用預設排序次序。When you instantiate a CultureInfo object with the zh-CN culture name, the default sort order is used. 當您具現化具有0x00020804 之本機識別碼的 CultureInfo 物件時,字串會依筆劃計數排序。When you instantiate a CultureInfo object with a local identifier of 0x00020804, strings are sorted by stroke count.

下表列出支援替代排序次序的文化特性,以及預設和替代排序次序的識別碼。The following table lists the cultures that support alternate sort orders and the identifiers for the default and alternate sort orders.

文化特性名稱Culture name cultureCulture 預設排序名稱和識別碼Default sort name and identifier 替代排序名稱和識別碼Alternate sort name and identifier
es-ESes-ES 西班牙文(西班牙)Spanish (Spain) 國際:0x00000C0AInternational: 0x00000C0A 傳統:0x0000040ATraditional: 0x0000040A
zh-TWzh-TW 中文 (台灣)Chinese (Taiwan) 筆劃計數:0x00000404Stroke Count: 0x00000404 注音:0x00030404Bopomofo: 0x00030404
zh-CNzh-CN 中文 (中國)Chinese (PRC) 發音:0x00000804Pronunciation: 0x00000804 筆劃計數:0x00020804Stroke Count: 0x00020804
zh-HKzh-HK 中文 (香港特別行政區)Chinese (Hong Kong SAR) 筆劃計數:0x00000c04Stroke Count: 0x00000c04 筆劃計數:0x00020c04Stroke Count: 0x00020c04
zh-SGzh-SG 中文(新加坡)Chinese (Singapore) 發音:0x00001004Pronunciation: 0x00001004 筆劃計數:0x00021004Stroke Count: 0x00021004
zh-每月zh-MO 中文(澳門特別行政區)Chinese (Macao SAR) 發音:0x00001404Pronunciation: 0x00001404 筆劃計數:0x00021404Stroke Count: 0x00021404
ja-JPja-JP 日文(日本)Japanese (Japan) 預設值:0x00000411Default: 0x00000411 Unicode:0x00010411Unicode: 0x00010411
ko-KRko-KR 韓文 (韓國)Korean (Korea) 預設值:0x00000412Default: 0x00000412 韓文 Xwansung-Unicode:0x00010412Korean Xwansung - Unicode: 0x00010412
de-DEde-DE 德文 (德國)German (Germany) 字典:0x00000407Dictionary: 0x00000407 電話簿排序:0x00010407Phone Book Sort DIN: 0x00010407
hu-HUhu-HU 匈牙利文 (匈牙利)Hungarian (Hungary) 預設值:0x0000040eDefault: 0x0000040e 技術排序:0x0001040eTechnical Sort: 0x0001040e
ka-GEka-GE 格魯吉亞文(格魯吉亞)Georgian (Georgia) 傳統:0x00000437Traditional: 0x00000437 現代化排序:0x00010437Modern Sort: 0x00010437

目前的文化特性和 UWP 應用程式The current culture and UWP apps

在通用 Windows 平臺(UWP)應用程式中,CurrentCultureCurrentUICulture 屬性都是讀寫,就像是在 .NET Framework 和 .NET Core 應用程式中一樣。In Universal Windows Platform (UWP) apps, the CurrentCulture and CurrentUICulture properties are read-write, just as they are in .NET Framework and .NET Core apps. 不過,UWP 應用程式會辨識單一文化特性。However, UWP apps recognize a single culture. CurrentCultureCurrentUICulture 屬性會對應至DefaultCoNtext集合中的第一個值。(property)The CurrentCulture and CurrentUICulture properties map to the first value in the Windows.ApplicationModel.Resources.Core.ResourceManager.DefaultContext.Languages collection.

在 .NET Framework 和 .NET Core 應用程式中,目前的文化特性是每個執行緒的設定,而 [CurrentCulture] 和 [CurrentUICulture] 屬性則只會反映目前線程的文化特性和 UI 文化特性。In .NET Framework and .NET Core apps, the current culture is a per-thread setting, and the CurrentCulture and CurrentUICulture properties reflect the culture and UI culture of the current thread only. 在 UWP 應用程式中,目前的文化特性會對應到DefaultCoNtext ,這是一個全域設定。In UWP apps, the current culture maps to the Windows.ApplicationModel.Resources.Core.ResourceManager.DefaultContext.Languages collection, which is a global setting. 設定 CurrentCultureCurrentUICulture 屬性會變更整個應用程式的文化特性;無法以每個執行緒為基礎來設定文化特性。Setting the CurrentCulture or CurrentUICulture property changes the culture of the entire app; culture cannot be set on a per-thread basis.

建構函式

CultureInfo(Int32)

根據文化特性識別項所指定的文化特性,初始化 CultureInfo 類別的新執行個體。Initializes a new instance of the CultureInfo class based on the culture specified by the culture identifier.

CultureInfo(Int32, Boolean)

根據文化特性識別項所指定的文化特性,並根據指定是否要使用系統中使用者選取的文化特性設定的布林值,初始化 CultureInfo 類別的新執行個體。Initializes a new instance of the CultureInfo class based on the culture specified by the culture identifier and on the Boolean that specifies whether to use the user-selected culture settings from the system.

CultureInfo(String)

根據名稱所指定的文化特性,初始化 CultureInfo 類別的新執行個體。Initializes a new instance of the CultureInfo class based on the culture specified by name.

CultureInfo(String, Boolean)

根據名稱所指定的文化特性,並根據指示是否要從系統中使用使用者選取的文化特性設定的布林值,初始化 CultureInfo 類別的新執行個體。Initializes a new instance of the CultureInfo class based on the culture specified by name and on the Boolean that specifies whether to use the user-selected culture settings from the system.

屬性

Calendar

取得文化特性使用的預設曆法。Gets the default calendar used by the culture.

CompareInfo

取得 CompareInfo,定義此文化特性如何比較字串。Gets the CompareInfo that defines how to compare strings for the culture.

CultureTypes

取得和目前 CultureInfo 物件關聯的文化特性類型。Gets the culture types that pertain to the current CultureInfo object.

CurrentCulture

取得或設定 CultureInfo 物件,這個物件代表目前執行緒使用的文化特性。Gets or sets the CultureInfo object that represents the culture used by the current thread.

CurrentUICulture

取得或設定 CultureInfo 物件,此物件代表 Resource Manager 用於執行階段查詢特定文化特性資源的目前使用者介面文化特性。Gets or sets the CultureInfo object that represents the current user interface culture used by the Resource Manager to look up culture-specific resources at run time.

DateTimeFormat

取得或設定 DateTimeFormatInfo,定義日期和時間在文化特性上適當的顯示格式。Gets or sets a DateTimeFormatInfo that defines the culturally appropriate format of displaying dates and times.

DefaultThreadCurrentCulture

取得或設定目前應用程式定義域中之執行緒的預設文化特性。Gets or sets the default culture for threads in the current application domain.

DefaultThreadCurrentUICulture

取得或設定目前應用程式定義域中之執行緒的預設 UI 文化特性。Gets or sets the default UI culture for threads in the current application domain.

DisplayName

取得完整當地語系化文化特性名稱。Gets the full localized culture name.

EnglishName

取得格式為 languagefull [country/regionfull] 的英文文化特性名稱。Gets the culture name in the format languagefull [country/regionfull] in English.

IetfLanguageTag

已取代。Deprecated. 取得語言的 RFC 4646 標準識別。Gets the RFC 4646 standard identification for a language.

InstalledUICulture

取得 CultureInfo,代表作業系統所安裝的文化特性。Gets the CultureInfo that represents the culture installed with the operating system.

InvariantCulture

取得與文化特性無關的 (不變的) CultureInfo 物件。Gets the CultureInfo object that is culture-independent (invariant).

IsNeutralCulture

取得值,指出目前 CultureInfo 是否代表中性文化特性。Gets a value indicating whether the current CultureInfo represents a neutral culture.

IsReadOnly

取得值,指出目前 CultureInfo 是否唯讀。Gets a value indicating whether the current CultureInfo is read-only.

KeyboardLayoutId

取得使用中的輸入地區設定識別項 (Input Locale Identifier)。Gets the active input locale identifier.

LCID

取得目前 CultureInfo 的文化特性識別項。Gets the culture identifier for the current CultureInfo.

Name

取得格式為 languagecode2-country/regioncode2 的文化特性名稱。Gets the culture name in the format languagecode2-country/regioncode2.

NativeName

取得文化特性設定為要顯示的文化特性名稱,由語言、國家/地區和選擇性 (Optional) 指令碼組成。Gets the culture name, consisting of the language, the country/region, and the optional script, that the culture is set to display.

NumberFormat

取得或設定 NumberFormatInfo,定義數字、貨幣和百分比在文化特性上適當的顯示格式。Gets or sets a NumberFormatInfo that defines the culturally appropriate format of displaying numbers, currency, and percentage.

OptionalCalendars

取得可為文化特性所使用的曆法清單。Gets the list of calendars that can be used by the culture.

Parent

取得 CultureInfo,代表目前 CultureInfo 的父文化特性。Gets the CultureInfo that represents the parent culture of the current CultureInfo.

TextInfo

取得 TextInfo,定義與文化特性相關的書寫系統。Gets the TextInfo that defines the writing system associated with the culture.

ThreeLetterISOLanguageName

取得目前 CultureInfo 的語言的 ISO 639-2 三個字母代碼。Gets the ISO 639-2 three-letter code for the language of the current CultureInfo.

ThreeLetterWindowsLanguageName

取得 Windows API 中所定義之語言的三個字母代碼。Gets the three-letter code for the language as defined in the Windows API.

TwoLetterISOLanguageName

取得目前 CultureInfo 之語言的 ISO 639-1 兩個字母代碼。Gets the ISO 639-1 two-letter code for the language of the current CultureInfo.

UseUserOverride

取得值,指出目前 CultureInfo 是否使用使用者選取的文化特性設定。Gets a value indicating whether the current CultureInfo object uses the user-selected culture settings.

方法

ClearCachedData()

重新整理已快取的文化特性相關資訊。Refreshes cached culture-related information.

Clone()

建立目前的 CultureInfo 複本。Creates a copy of the current CultureInfo.

CreateSpecificCulture(String)

建立 CultureInfo,代表與指定名稱相關的特定文化特性。Creates a CultureInfo that represents the specific culture that is associated with the specified name.

Equals(Object)

判斷指定物件是否與目前 CultureInfo 為相同的文化特性。Determines whether the specified object is the same culture as the current CultureInfo.

GetConsoleFallbackUICulture()

在預設的圖形使用者介面 (Graphic User Interface,GUI) 的文化特性不適合主控台應用程式 (Console Application) 時,取得適合的替代使用者介面文化特性。Gets an alternate user interface culture suitable for console applications when the default graphic user interface culture is unsuitable.

GetCultureInfo(Int32)

使用指定的文化特性識別項,擷取已快取的唯讀文化特性執行個體。Retrieves a cached, read-only instance of a culture by using the specified culture identifier.

GetCultureInfo(String)

使用指定的文化特性名稱,擷取已快取的唯讀文化特性執行個體。Retrieves a cached, read-only instance of a culture using the specified culture name.

GetCultureInfo(String, String)

擷取文化特性的快取、唯讀執行個體。Retrieves a cached, read-only instance of a culture. 這些參數會指定文化特性,這個文化特性使用另一個文化特性所指定的 TextInfoCompareInfo 物件來初始化。Parameters specify a culture that is initialized with the TextInfo and CompareInfo objects specified by another culture.

GetCultureInfoByIetfLanguageTag(String)

已取代。Deprecated. 擷取唯讀的 CultureInfo 物件,其語言特性是透過指定的 RFC 4646 語言標籤所辨識。Retrieves a read-only CultureInfo object having linguistic characteristics that are identified by the specified RFC 4646 language tag.

GetCultures(CultureTypes)

取得支援的文化特性清單,此清單經過指定的 CultureTypes 參數篩選。Gets the list of supported cultures filtered by the specified CultureTypes parameter.

GetFormat(Type)

取得定義如何格式化指定型別的物件。Gets an object that defines how to format the specified type.

GetHashCode()

做為目前 CultureInfo 的雜湊函式,適用於雜湊演算法與資料結構,例如雜湊表。Serves as a hash function for the current CultureInfo, suitable for hashing algorithms and data structures, such as a hash table.

GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(繼承來源 Object)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
ReadOnly(CultureInfo)

傳回指定 CultureInfo 物件的唯讀包裝函式。Returns a read-only wrapper around the specified CultureInfo object.

ToString()

傳回包含目前 CultureInfo 名稱的字串,其格式為 languagecode2-country/regioncode2Returns a string containing the name of the current CultureInfo in the format languagecode2-country/regioncode2.

適用於

另請參閱