CompareInfo.Compare 方法

定义

比较两个字符串。Compares two strings.

重载

Compare(String, String)

比较两个字符串。Compares two strings.

Compare(String, String, CompareOptions)

使用指定的 CompareOptions 值比较两个字符串。Compares two strings using the specified CompareOptions value.

Compare(String, Int32, String, Int32)

将一个字符串的结尾部分与另一个字符串的结尾部分相比较。Compares the end section of a string with the end section of another string.

Compare(String, Int32, String, Int32, CompareOptions)

使用指定的 CompareOptions 值将一个字符串的结尾部分与另一个字符串的结尾部分相比较。Compares the end section of a string with the end section of another string using the specified CompareOptions value.

Compare(String, Int32, Int32, String, Int32, Int32)

将一个字符串的一部分与另一个字符串的一部分相比较。Compares a section of one string with a section of another string.

Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)

使用指定的 CompareOptions 值将一个字符串的一部分与另一个字符串的一部分相比较。Compares a section of one string with a section of another string using the specified CompareOptions value.

Compare(String, String)

比较两个字符串。Compares two strings.

public:
 virtual int Compare(System::String ^ string1, System::String ^ string2);
public virtual int Compare (string string1, string string2);
abstract member Compare : string * string -> int
override this.Compare : string * string -> int
Public Overridable Function Compare (string1 As String, string2 As String) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

string2
String

要比较的第二个字符串。The second string to compare.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 小于 string2string1 is less than string2.
大于零greater than zero string1 大于 string2string1 is greater than string2.

示例

下面的示例使用不同CompareInfo的对象比较两个字符串的各个部分:The following example compares portions of two strings using the different CompareInfo objects:

// The following code example compares two strings using the different CompareInfo instances:
//    a CompareInfo instance associated with the S"Spanish - Spain" culture with international sort,
//    a CompareInfo instance associated with the S"Spanish - Spain" culture with traditional sort, and
//    a CompareInfo instance associated with the InvariantCulture.
using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
   Console::WriteLine( "   With myCompIntl::Compare: {0}", myCompIntl->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With myCompTrad::Compare: {0}", myCompTrad->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With myCompInva::Compare: {0}", myCompInva->Compare( myStr1, myStr2 ) );
}

/*
This code produces the following output.

Comparing "calle" and "calor"
   With myCompIntl::Compare: -1
   With myCompTrad::Compare: 1
   With myCompInva::Compare: -1
*/
// The following code example compares two strings using the different CompareInfo instances:
//    a CompareInfo instance associated with the "Spanish - Spain" culture with international sort,
//    a CompareInfo instance associated with the "Spanish - Spain" culture with traditional sort, and
//    a CompareInfo instance associated with the InvariantCulture.

using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );
      
      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, myStr2 ) );

   }

}


/*
This code produces the following output.

Comparing "calle" and "calor"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/
' The following code example compares two strings using the different CompareInfo instances:
'    a CompareInfo instance associated with the "Spanish - Spain" culture with international sort,
'    a CompareInfo instance associated with the "Spanish - Spain" culture with traditional sort, and
'    a CompareInfo instance associated with the InvariantCulture.

Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1, myStr2)
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, myStr2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, myStr2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, myStr2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "calle" and "calor"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

下面的示例演示如何调用 Compare 方法。The following example demonstrates calling the Compare method.

using namespace System;
using namespace System::Text;
using namespace System::Globalization;

int main()
{
    array<String^>^ sign = gcnew array<String^> { "<", "=", ">" };

    // The code below demonstrates how strings compare
    // differently for different cultures.
    String^ s1 = "Coté"; 
    String^ s2 = "coté";
    String^ s3 = "côte";

    // Set sort order of strings for French in France.
    CompareInfo^ ci = (gcnew CultureInfo("fr-FR"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using fr-FR Compare of Coté = coté.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s1, s2, sign[ci->Compare(s1, s2, CompareOptions::IgnoreCase) + 1]);

    // Display the result using fr-FR Compare of coté > côte.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3, CompareOptions::None) + 1]);

    // Set sort order of strings for Japanese as spoken in Japan.
    ci = (gcnew CultureInfo("ja-JP"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using ja-JP Compare of coté < côte.
    Console::WriteLine("ja-JP Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3) + 1]);
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte
using System;
using System.Text;
using System.Globalization;

public sealed class App
{
    static void Main(string[] args)
    {
        String[] sign = new String[] { "<", "=", ">" };

        // The code below demonstrates how strings compare 
        // differently for different cultures.
        String s1 = "Coté", s2 = "coté", s3 = "côte";

        // Set sort order of strings for French in France.
        CompareInfo ci = new CultureInfo("fr-FR").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);
      
        // Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s1, s2, sign[ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1]);

        // Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3, CompareOptions.None) + 1]);

        // Set sort order of strings for Japanese as spoken in Japan.
        ci = new CultureInfo("ja-JP").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3) + 1]);
    }
}

// This code produces the following output.
// 
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte
Imports System.Text
Imports System.Globalization

NotInheritable Public Class App
    Shared Sub Main(ByVal args() As String) 
        Dim sign() As String = {"<", "=", ">"}
        
        ' The code below demonstrates how strings compare 
        ' differently for different cultures.
        Dim s1 As String = "Coté"
        Dim s2 As String = "coté"
        Dim s3 As String = "côte"
        
        ' Set sort order of strings for French in France.
        Dim ci As CompareInfo = New CultureInfo("fr-FR").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s1, s2, sign((ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1)))
        
        ' Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3, CompareOptions.None) + 1)))
        
        ' Set sort order of strings for Japanese as spoken in Japan.
        ci = New CultureInfo("ja-JP").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3) + 1)))
    End Sub
End Class

' This code produces the following output.
' 
' The LCID for fr-FR is 1036.
' fr-FR Compare: Coté = coté
' fr-FR Compare: coté > côte
' The LCID for ja-JP is 1041.
' ja-JP Compare: coté < côte

注解

默认情况下, 使用CompareOptions.None执行比较。By default, the comparison is performed by using CompareOptions.None. 如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应调用具有类型CompareOptions的参数的字符串比较方法, 以指定所需的比较类型。When possible, you should call string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符,在执行语言性的或区分区域性的比较时该字符不被考虑。Character sets include ignorable characters, which are characters that are not considered when performing a linguistic or culture-sensitive comparison. Compare(String, String)方法执行区分区域性的比较时, 它不会考虑此类字符。The Compare(String, String) method does not consider such characters when it performs a culture-sensitive comparison. 例如, 使用 "ani" (使用软连字符或 U + 00AD) 的 "动物" 比较区分区域性的比较表明这两个字符串是等效的, 如下面的示例所示。For instance, a culture-sensitive comparison of "animal" with "ani-mal" (using a soft hyphen, or U+00AD) indicates that the two strings are equivalent, as the following example shows.

[!code-vbSystem.Globalization.CompareInfo.Compare#1][!code-vbSystem.Globalization.CompareInfo.Compare#1]

若要在字符串比较中识别可忽略字符, Compare(String, String, CompareOptions)请调用方法, 并为options参数Ordinal提供OrdinalIgnoreCase或的值。To recognize ignorable characters in a string comparison, call the Compare(String, String, CompareOptions) method and supply a value of either Ordinal or OrdinalIgnoreCase for the options parameter.

Compare(String, String, CompareOptions)

使用指定的 CompareOptions 值比较两个字符串。Compares two strings using the specified CompareOptions value.

public:
 virtual int Compare(System::String ^ string1, System::String ^ string2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, string string2, System.Globalization.CompareOptions options);
abstract member Compare : string * string * System.Globalization.CompareOptions -> int
override this.Compare : string * string * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, string2 As String, options As CompareOptions) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

string2
String

要比较的第二个字符串。The second string to compare.

options
CompareOptions

一个值,用于定义应如何比较 string1string2A value that defines how string1 and string2 should be compared. options 可以为枚举值 Ordinal,或为以下一个或多个值的按位组合:IgnoreCaseIgnoreSymbolsIgnoreNonSpaceIgnoreWidthIgnoreKanaTypeStringSortoptions is either the enumeration value Ordinal, or a bitwise combination of one or more of the following values: IgnoreCase, IgnoreSymbols, IgnoreNonSpace, IgnoreWidth, IgnoreKanaType, and StringSort.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 小于 string2string1 is less than string2.
大于零greater than zero string1 大于 string2string1 is greater than string2.

异常

options 包含无效的 CompareOptions 值。options contains an invalid CompareOptions value.

示例

下面的示例使用不同CompareOptions的设置来比较两个字符串。The following example compares two strings using different CompareOptions settings.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo which uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, myStr2 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, myStr2, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, myStr2, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "My Uncle Bill's clients" and "My uncle bills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0
*/
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1, myStr2 );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, myStr2 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, myStr2, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );

   }

}


/*
This code produces the following output.

Comparing "My Uncle Bill's clients" and "My uncle bills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/
Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1, myStr2)
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, myStr2))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, myStr2, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "My Uncle Bill's clients" and "My uncle bills clients"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -32
'   With StringSort                   : -1
'   With IgnoreCase                   : 1
'   With IgnoreSymbols                : 1
'   With IgnoreCase and IgnoreSymbols : 0

下面的示例演示如何调用 Compare 方法。The following example demonstrates calling the Compare method.

using namespace System;
using namespace System::Text;
using namespace System::Globalization;

int main()
{
    array<String^>^ sign = gcnew array<String^> { "<", "=", ">" };

    // The code below demonstrates how strings compare
    // differently for different cultures.
    String^ s1 = "Coté"; 
    String^ s2 = "coté";
    String^ s3 = "côte";

    // Set sort order of strings for French in France.
    CompareInfo^ ci = (gcnew CultureInfo("fr-FR"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using fr-FR Compare of Coté = coté.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s1, s2, sign[ci->Compare(s1, s2, CompareOptions::IgnoreCase) + 1]);

    // Display the result using fr-FR Compare of coté > côte.
    Console::WriteLine(L"fr-FR Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3, CompareOptions::None) + 1]);

    // Set sort order of strings for Japanese as spoken in Japan.
    ci = (gcnew CultureInfo("ja-JP"))->CompareInfo;
    Console::WriteLine(L"The LCID for {0} is {1}.", ci->Name, ci->LCID);

    // Display the result using ja-JP Compare of coté < côte.
    Console::WriteLine("ja-JP Compare: {0} {2} {1}",
        s2, s3, sign[ci->Compare(s2, s3) + 1]);
}

// This code produces the following output.
//
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte
using System;
using System.Text;
using System.Globalization;

public sealed class App
{
    static void Main(string[] args)
    {
        String[] sign = new String[] { "<", "=", ">" };

        // The code below demonstrates how strings compare 
        // differently for different cultures.
        String s1 = "Coté", s2 = "coté", s3 = "côte";

        // Set sort order of strings for French in France.
        CompareInfo ci = new CultureInfo("fr-FR").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);
      
        // Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s1, s2, sign[ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1]);

        // Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3, CompareOptions.None) + 1]);

        // Set sort order of strings for Japanese as spoken in Japan.
        ci = new CultureInfo("ja-JP").CompareInfo;
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID);

        // Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}",
            s2, s3, sign[ci.Compare(s2, s3) + 1]);
    }
}

// This code produces the following output.
// 
// The LCID for fr-FR is 1036.
// fr-FR Compare: Coté = coté
// fr-FR Compare: coté > côte
// The LCID for ja-JP is 1041.
// ja-JP Compare: coté < côte
Imports System.Text
Imports System.Globalization

NotInheritable Public Class App
    Shared Sub Main(ByVal args() As String) 
        Dim sign() As String = {"<", "=", ">"}
        
        ' The code below demonstrates how strings compare 
        ' differently for different cultures.
        Dim s1 As String = "Coté"
        Dim s2 As String = "coté"
        Dim s3 As String = "côte"
        
        ' Set sort order of strings for French in France.
        Dim ci As CompareInfo = New CultureInfo("fr-FR").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using fr-FR Compare of Coté = coté.  	
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s1, s2, sign((ci.Compare(s1, s2, CompareOptions.IgnoreCase) + 1)))
        
        ' Display the result using fr-FR Compare of coté > côte.
        Console.WriteLine("fr-FR Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3, CompareOptions.None) + 1)))
        
        ' Set sort order of strings for Japanese as spoken in Japan.
        ci = New CultureInfo("ja-JP").CompareInfo
        Console.WriteLine("The LCID for {0} is {1}.", ci.Name, ci.LCID)
        
        ' Display the result using ja-JP Compare of coté < côte. 
        Console.WriteLine("ja-JP Compare: {0} {2} {1}", _
                          s2, s3, sign((ci.Compare(s2, s3) + 1)))
    End Sub
End Class

' This code produces the following output.
' 
' The LCID for fr-FR is 1036.
' fr-FR Compare: Coté = coté
' fr-FR Compare: coté > côte
' The LCID for ja-JP is 1041.
' ja-JP Compare: coté < côte

注解

如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应调用具有类型CompareOptions的参数的字符串比较方法, 以指定所需的比较类型。When possible, you should call string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符,在执行语言性的或区分区域性的比较时该字符不被考虑。Character sets include ignorable characters, which are characters that are not considered when performing a linguistic or culture-sensitive comparison. Compare(String, String, CompareOptions)方法执行区分区域性的比较时, 它不会考虑此类字符。The Compare(String, String, CompareOptions) method does not consider such characters when it performs a culture-sensitive comparison. 若要在比较中识别可忽略字符, 请为Ordinal options参数OrdinalIgnoreCase提供值或。To recognize ignorable characters in your comparison, supply a value of Ordinal or OrdinalIgnoreCase for the options parameter.

另请参阅

Compare(String, Int32, String, Int32)

将一个字符串的结尾部分与另一个字符串的结尾部分相比较。Compares the end section of a string with the end section of another string.

public:
 virtual int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2);
public virtual int Compare (string string1, int offset1, string string2, int offset2);
abstract member Compare : string * int * string * int -> int
override this.Compare : string * int * string * int -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

offset1
Int32

string1 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string1 at which to start comparing.

string2
String

要比较的第二个字符串。The second string to compare.

offset2
Int32

string2 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string2 at which to start comparing.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 的指定部分小于 string2 的指定部分。The specified section of string1 is less than the specified section of string2.
大于零greater than zero string1 的指定部分大于 string2 的指定部分。The specified section of string1 is greater than the specified section of string2.

异常

offset1offset2 小于零。offset1 or offset2 is less than zero.

-or-

offset1 大于或等于 string1 中的字符数。offset1 is greater than or equal to the number of characters in string1.

-or-

offset2 大于或等于 string2 中的字符数。offset2 is greater than or equal to the number of characters in string2.

示例

下面的示例使用不同CompareInfo的对象比较两个字符串的各个部分:The following example compares portions of two strings using the different CompareInfo objects:

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that 
   // uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 2 ), myStr2->Substring( 2 ) );
   Console::WriteLine( "   With myCompIntl::Compare: {0}", myCompIntl->Compare( myStr1, 2, myStr2, 2 ) );
   Console::WriteLine( "   With myCompTrad::Compare: {0}", myCompTrad->Compare( myStr1, 2, myStr2, 2 ) );
   Console::WriteLine( "   With myCompInva::Compare: {0}", myCompInva->Compare( myStr1, 2, myStr2, 2 ) );
}

/*
This code produces the following output.

Comparing "lle" and "lor"
   With myCompIntl::Compare: -1
   With myCompTrad::Compare: 1
   With myCompInva::Compare: -1
*/
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );
      
      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 2 ), myStr2.Substring( 2 ) );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, 2, myStr2, 2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, 2, myStr2, 2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, 2, myStr2, 2 ) );

   }

}


/*
This code produces the following output.

Comparing "lle" and "lor"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/
Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(2), myStr2.Substring(2))
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, 2, myStr2, 2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, 2, myStr2, 2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, 2, myStr2, 2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "lle" and "lor"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

注解

如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应调用具有类型CompareOptions的参数的字符串比较方法, 以指定所需的比较类型。When possible, you should call string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符。Character sets include ignorable characters. Compare(String, Int32, String, Int32)方法在执行语言或区分区域性的比较时不考虑这些字符。The Compare(String, Int32, String, Int32) method does not consider these characters when it performs a linguistic or culture-sensitive comparison. 若要在比较中识别可忽略字符, Compare(String, Int32, String, Int32, CompareOptions)请调用方法, 并为Ordinal options参数OrdinalIgnoreCase提供值或。To recognize ignorable characters in your comparison, call the Compare(String, Int32, String, Int32, CompareOptions) method and supply a value of Ordinal or OrdinalIgnoreCase for the options parameter.

Compare(String, Int32, String, Int32, CompareOptions)

使用指定的 CompareOptions 值将一个字符串的结尾部分与另一个字符串的结尾部分相比较。Compares the end section of a string with the end section of another string using the specified CompareOptions value.

public:
 virtual int Compare(System::String ^ string1, int offset1, System::String ^ string2, int offset2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, int offset1, string string2, int offset2, System.Globalization.CompareOptions options);
abstract member Compare : string * int * string * int * System.Globalization.CompareOptions -> int
override this.Compare : string * int * string * int * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, string2 As String, offset2 As Integer, options As CompareOptions) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

offset1
Int32

string1 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string1 at which to start comparing.

string2
String

要比较的第二个字符串。The second string to compare.

offset2
Int32

string2 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string2 at which to start comparing.

options
CompareOptions

一个值,用于定义应如何比较 string1string2A value that defines how string1 and string2 should be compared. options 可以为枚举值 Ordinal,或为以下一个或多个值的按位组合:IgnoreCaseIgnoreSymbolsIgnoreNonSpaceIgnoreWidthIgnoreKanaTypeStringSortoptions is either the enumeration value Ordinal, or a bitwise combination of one or more of the following values: IgnoreCase, IgnoreSymbols, IgnoreNonSpace, IgnoreWidth, IgnoreKanaType, and StringSort.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 的指定部分小于 string2 的指定部分。The specified section of string1 is less than the specified section of string2.
大于零greater than zero string1 的指定部分大于 string2 的指定部分。The specified section of string1 is greater than the specified section of string2.

异常

offset1offset2 小于零。offset1 or offset2 is less than zero.

- 或 --or-

offset1 大于或等于 string1 中的字符数。offset1 is greater than or equal to the number of characters in string1.

-or-

offset2 大于或等于 string2 中的字符数。offset2 is greater than or equal to the number of characters in string2.

options 包含无效的 CompareOptions 值。options contains an invalid CompareOptions value.

示例

下面的示例使用不同CompareOptions的设置来比较两个字符串的各个部分。The following example compares portions of two strings using different CompareOptions settings.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo that uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 10 ), myStr2->Substring( 10 ) );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, 10, myStr2, 10 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, 10, myStr2, 10, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, 10, myStr2, 10, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "ill's clients" and "ills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -76
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 0
   With IgnoreCase and IgnoreSymbols : 0
*/
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 10 ), myStr2.Substring( 10 ) );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, 10, myStr2, 10 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );

   }

}


/*
This code produces the following output.

Comparing "ill's clients" and "ills clients"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -76
   With StringSort                   : -1
   With IgnoreCase                   : 1
   With IgnoreSymbols                : 0
   With IgnoreCase and IgnoreSymbols : 0

*/
Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(10), myStr2.Substring(10))
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, 10, myStr2, 10))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, 10, myStr2, 10, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "ill's clients" and "ills clients"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -76
'   With StringSort                   : -1
'   With IgnoreCase                   : 1
'   With IgnoreSymbols                : 0
'   With IgnoreCase and IgnoreSymbols : 0

注解

如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应调用具有类型CompareOptions的参数的字符串比较方法, 以指定所需的比较类型。When possible, you should call string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符,在执行语言性的或区分区域性的比较时该字符不被考虑。Character sets include ignorable characters, which are characters that are not considered when performing a linguistic or culture-sensitive comparison. 执行Compare(String, Int32, String, Int32, CompareOptions)区分区域性的比较时, 该方法不会考虑此类字符。The Compare(String, Int32, String, Int32, CompareOptions) method does not consider such characters when performing a culture-sensitive comparison. 若要在比较中识别可忽略字符, 请为Ordinal options参数OrdinalIgnoreCase提供值或。To recognize ignorable characters in your comparison, supply a value of Ordinal or OrdinalIgnoreCase for the options parameter.

另请参阅

Compare(String, Int32, Int32, String, Int32, Int32)

将一个字符串的一部分与另一个字符串的一部分相比较。Compares a section of one string with a section of another string.

public:
 virtual int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2);
public virtual int Compare (string string1, int offset1, int length1, string string2, int offset2, int length2);
abstract member Compare : string * int * int * string * int * int -> int
override this.Compare : string * int * int * string * int * int -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

offset1
Int32

string1 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string1 at which to start comparing.

length1
Int32

string1 中要比较的连续字符数。The number of consecutive characters in string1 to compare.

string2
String

要比较的第二个字符串。The second string to compare.

offset2
Int32

string2 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string2 at which to start comparing.

length2
Int32

string2 中要比较的连续字符数。The number of consecutive characters in string2 to compare.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 的指定部分小于 string2 的指定部分。The specified section of string1 is less than the specified section of string2.
大于零greater than zero string1 的指定部分大于 string2 的指定部分。The specified section of string1 is greater than the specified section of string2.

异常

offset1length1offset2length2 小于零。offset1 or length1 or offset2 or length2 is less than zero.

-or-

offset1 大于或等于 string1 中的字符数。offset1 is greater than or equal to the number of characters in string1.

-or-

offset2 大于或等于 string2 中的字符数。offset2 is greater than or equal to the number of characters in string2.

-or-

length1 大于从 offset1string1 末尾的字符数。length1 is greater than the number of characters from offset1 to the end of string1.

- 或 --or-

length2 大于从 offset2string2 末尾的字符数。length2 is greater than the number of characters from offset2 to the end of string2.

示例

下面的示例使用不同CompareInfo的对象比较两个字符串的各个部分:The following example compares portions of two strings using the different CompareInfo objects:

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "calle";
   String^ myStr2 = "calor";
   
   // Uses GetCompareInfo to create the CompareInfo that uses the S"es-ES" culture with international sort.
   CompareInfo^ myCompIntl = CompareInfo::GetCompareInfo( "es-ES" );
   
   // Uses GetCompareInfo to create the CompareInfo that uses the S"es-ES" culture with traditional sort.
   CompareInfo^ myCompTrad = CompareInfo::GetCompareInfo( 0x040A );
   
   // Uses the CompareInfo property of the InvariantCulture.
   CompareInfo^ myCompInva = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myCompIntl.
   Console::WriteLine( "Comparing \" {0}\" and \" {1}\"", myStr1->Substring( 2, 2 ), myStr2->Substring( 2, 2 ) );
   Console::WriteLine( "   With myCompIntl->Compare: {0}", myCompIntl->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
   Console::WriteLine( "   With myCompTrad->Compare: {0}", myCompTrad->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
   Console::WriteLine( "   With myCompInva->Compare: {0}", myCompInva->Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
}

/*
This code produces the following output.

Comparing S"ll" and S"lo"
With myCompIntl.Compare: -1
With myCompTrad.Compare: 1
With myCompInva.Compare: -1

*/
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "calle";
      String myStr2 = "calor";

      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      CompareInfo myCompIntl = CompareInfo.GetCompareInfo( "es-ES" );
      
      // Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      CompareInfo myCompTrad = CompareInfo.GetCompareInfo( 0x040A );

      // Uses the CompareInfo property of the InvariantCulture.
      CompareInfo myCompInva = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myCompIntl.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 2, 2 ), myStr2.Substring( 2, 2 ) );
      Console.WriteLine( "   With myCompIntl.Compare: {0}", myCompIntl.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
      Console.WriteLine( "   With myCompTrad.Compare: {0}", myCompTrad.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );
      Console.WriteLine( "   With myCompInva.Compare: {0}", myCompInva.Compare( myStr1, 2, 2, myStr2, 2, 2 ) );

   }

}


/*
This code produces the following output.

Comparing "ll" and "lo"
   With myCompIntl.Compare: -1
   With myCompTrad.Compare: 1
   With myCompInva.Compare: -1

*/
Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "calle"
      Dim myStr2 As [String] = "calor"

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with international sort.
      Dim myCompIntl As CompareInfo = CompareInfo.GetCompareInfo("es-ES")

      ' Uses GetCompareInfo to create the CompareInfo that uses the "es-ES" culture with traditional sort.
      Dim myCompTrad As CompareInfo = CompareInfo.GetCompareInfo(&H40A)

      ' Uses the CompareInfo property of the InvariantCulture.
      Dim myCompInva As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myCompIntl.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(2, 2), myStr2.Substring(2, 2))
      Console.WriteLine("   With myCompIntl.Compare: {0}", myCompIntl.Compare(myStr1, 2, 2, myStr2, 2, 2))
      Console.WriteLine("   With myCompTrad.Compare: {0}", myCompTrad.Compare(myStr1, 2, 2, myStr2, 2, 2))
      Console.WriteLine("   With myCompInva.Compare: {0}", myCompInva.Compare(myStr1, 2, 2, myStr2, 2, 2))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "ll" and "lo"
'   With myCompIntl.Compare: -1
'   With myCompTrad.Compare: 1
'   With myCompInva.Compare: -1

注解

如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应使用具有类型CompareOptions参数的字符串比较方法来指定预期的比较类型。When possible, you should use string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符。Character sets include ignorable characters. Compare(String, Int32, Int32, String, Int32, Int32)方法在执行语言或区分区域性的比较时不考虑这些字符。The Compare(String, Int32, Int32, String, Int32, Int32) method does not consider these characters when it performs a linguistic or culture-sensitive comparison. 若要在比较中识别可忽略字符, Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)请调用方法, 并为Ordinal options参数OrdinalIgnoreCase提供值或。To recognize ignorable characters in your comparison, call the Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions) method and supply a value of Ordinal or OrdinalIgnoreCase for the options parameter.

Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)

使用指定的 CompareOptions 值将一个字符串的一部分与另一个字符串的一部分相比较。Compares a section of one string with a section of another string using the specified CompareOptions value.

public:
 virtual int Compare(System::String ^ string1, int offset1, int length1, System::String ^ string2, int offset2, int length2, System::Globalization::CompareOptions options);
public virtual int Compare (string string1, int offset1, int length1, string string2, int offset2, int length2, System.Globalization.CompareOptions options);
abstract member Compare : string * int * int * string * int * int * System.Globalization.CompareOptions -> int
override this.Compare : string * int * int * string * int * int * System.Globalization.CompareOptions -> int
Public Overridable Function Compare (string1 As String, offset1 As Integer, length1 As Integer, string2 As String, offset2 As Integer, length2 As Integer, options As CompareOptions) As Integer

参数

string1
String

要比较的第一个字符串。The first string to compare.

offset1
Int32

string1 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string1 at which to start comparing.

length1
Int32

string1 中要比较的连续字符数。The number of consecutive characters in string1 to compare.

string2
String

要比较的第二个字符串。The second string to compare.

offset2
Int32

string2 中的字符从零开始的索引,将从此位置开始比较。The zero-based index of the character in string2 at which to start comparing.

length2
Int32

string2 中要比较的连续字符数。The number of consecutive characters in string2 to compare.

options
CompareOptions

一个值,用于定义应如何比较 string1string2A value that defines how string1 and string2 should be compared. options 可以为枚举值 Ordinal,或为以下一个或多个值的按位组合:IgnoreCaseIgnoreSymbolsIgnoreNonSpaceIgnoreWidthIgnoreKanaTypeStringSortoptions is either the enumeration value Ordinal, or a bitwise combination of one or more of the following values: IgnoreCase, IgnoreSymbols, IgnoreNonSpace, IgnoreWidth, IgnoreKanaType, and StringSort.

返回

一个 32 位有符号整数,指示两个比较数之间的词法关系。A 32-bit signed integer indicating the lexical relationship between the two comparands.

Value 条件Condition
zero 这两个字符串相等。The two strings are equal.
小于零less than zero string1 的指定部分小于 string2 的指定部分。The specified section of string1 is less than the specified section of string2.
大于零greater than zero string1 的指定部分大于 string2 的指定部分。The specified section of string1 is greater than the specified section of string2.

异常

offset1length1offset2length2 小于零。offset1 or length1 or offset2 or length2 is less than zero.

-or-

offset1 大于或等于 string1 中的字符数。offset1 is greater than or equal to the number of characters in string1.

-or-

offset2 大于或等于 string2 中的字符数。offset2 is greater than or equal to the number of characters in string2.

-or-

length1 大于从 offset1string1 末尾的字符数。length1 is greater than the number of characters from offset1 to the end of string1.

-or-

length2 大于从 offset2string2 末尾的字符数。length2 is greater than the number of characters from offset2 to the end of string2.

options 包含无效的 CompareOptions 值。options contains an invalid CompareOptions value.

示例

下面的示例使用不同CompareOptions的设置来比较两个字符串的各个部分。The following example compares portions of two strings using different CompareOptions settings.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Defines the strings to compare.
   String^ myStr1 = "My Uncle Bill's clients";
   String^ myStr2 = "My uncle bills clients";
   
   // Creates a CompareInfo that uses the InvariantCulture.
   CompareInfo^ myComp = CultureInfo::InvariantCulture->CompareInfo;
   
   // Compares two strings using myComp.
   Console::WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1->Substring( 3, 10 ), myStr2->Substring( 3, 10 ) );
   Console::WriteLine( "   With no CompareOptions            : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10 ) );
   Console::WriteLine( "   With None                         : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::None ) );
   Console::WriteLine( "   With Ordinal                      : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::Ordinal ) );
   Console::WriteLine( "   With StringSort                   : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::StringSort ) );
   Console::WriteLine( "   With IgnoreCase                   : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::IgnoreCase ) );
   Console::WriteLine( "   With IgnoreSymbols                : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions::IgnoreSymbols ) );
   Console::WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp->Compare( myStr1, 3, 10, myStr2, 3, 10, static_cast<CompareOptions>(CompareOptions::IgnoreCase | CompareOptions::IgnoreSymbols) ) );
}

/*
This code produces the following output.

Comparing "Uncle Bill" and "uncle bill"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : 1
   With IgnoreCase                   : 0
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/
using System;
using System.Globalization;

public class SamplesCompareInfo  {

   public static void Main()  {

      // Defines the strings to compare.
      String myStr1 = "My Uncle Bill's clients";
      String myStr2 = "My uncle bills clients";

      // Creates a CompareInfo that uses the InvariantCulture.
      CompareInfo myComp = CultureInfo.InvariantCulture.CompareInfo;

      // Compares two strings using myComp.
      Console.WriteLine( "Comparing \"{0}\" and \"{1}\"", myStr1.Substring( 3, 10 ), myStr2.Substring( 3, 10 ) );
      Console.WriteLine( "   With no CompareOptions            : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10 ) );
      Console.WriteLine( "   With None                         : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.None ) );
      Console.WriteLine( "   With Ordinal                      : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.Ordinal ) );
      Console.WriteLine( "   With StringSort                   : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.StringSort ) );
      Console.WriteLine( "   With IgnoreCase                   : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase ) );
      Console.WriteLine( "   With IgnoreSymbols                : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreSymbols ) );
      Console.WriteLine( "   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare( myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols ) );

   }

}


/*
This code produces the following output.

Comparing "Uncle Bill" and "uncle bill"
   With no CompareOptions            : 1
   With None                         : 1
   With Ordinal                      : -32
   With StringSort                   : 1
   With IgnoreCase                   : 0
   With IgnoreSymbols                : 1
   With IgnoreCase and IgnoreSymbols : 0

*/
Imports System.Globalization

Public Class SamplesCompareInfo

   Public Shared Sub Main()

      ' Defines the strings to compare.
      Dim myStr1 As [String] = "My Uncle Bill's clients"
      Dim myStr2 As [String] = "My uncle bills clients"

      ' Creates a CompareInfo that uses the InvariantCulture.
      Dim myComp As CompareInfo = CultureInfo.InvariantCulture.CompareInfo

      ' Compares two strings using myComp.
      Console.WriteLine("Comparing ""{0}"" and ""{1}""", myStr1.Substring(3, 10), myStr2.Substring(3, 10))
      Console.WriteLine("   With no CompareOptions            : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10))
      Console.WriteLine("   With None                         : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.None))
      Console.WriteLine("   With Ordinal                      : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.Ordinal))
      Console.WriteLine("   With StringSort                   : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.StringSort))
      Console.WriteLine("   With IgnoreCase                   : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase))
      Console.WriteLine("   With IgnoreSymbols                : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreSymbols))
      Console.WriteLine("   With IgnoreCase and IgnoreSymbols : {0}", myComp.Compare(myStr1, 3, 10, myStr2, 3, 10, CompareOptions.IgnoreCase Or CompareOptions.IgnoreSymbols))

   End Sub

End Class


'This code produces the following output.
'
'Comparing "Uncle Bill" and "uncle bill"
'   With no CompareOptions            : 1
'   With None                         : 1
'   With Ordinal                      : -32
'   With StringSort                   : 1
'   With IgnoreCase                   : 0
'   With IgnoreSymbols                : 1
'   With IgnoreCase and IgnoreSymbols : 0

注解

如果安全决策取决于字符串比较或大小写更改, 则应使用InvariantCulture属性来确保无论操作系统的区域性设置如何, 行为都保持一致。If a security decision depends on a string comparison or a case change, you should use the InvariantCulture property to ensure that the behavior is consistent regardless of the culture settings of the operating system.

备注

如果可能, 应调用具有类型CompareOptions的参数的字符串比较方法, 以指定所需的比较类型。When possible, you should call string comparison methods that have a parameter of type CompareOptions to specify the kind of comparison expected. 作为一般规则, 请使用语言选项 (使用当前区域性) 比较用户界面中显示的字符串, 并为安全Ordinal比较OrdinalIgnoreCase指定或。As a general rule, use linguistic options (using the current culture) for comparing strings displayed in the user interface and specify Ordinal or OrdinalIgnoreCase for security comparisons.

调用方说明

字符集包括可忽略字符。Character sets include ignorable characters. Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions)方法执行区分区域性的比较时, 该方法不考虑这些字符。The Compare(String, Int32, Int32, String, Int32, Int32, CompareOptions) method does not consider these characters when it performs a culture-sensitive comparison. 若要在比较中识别可忽略字符, 请为Ordinal options参数OrdinalIgnoreCase提供值或。To recognize ignorable characters in your comparison, supply a value of Ordinal or OrdinalIgnoreCase for the options parameter.

另请参阅

适用于