DateTime.ToShortDateString 方法

  • 参考

定义

命名空间:
System
程序集:
System.Runtime.dll
程序集:
netstandard.dll
程序集:
mscorlib.dll

将当前 DateTime 对象的值转换为其等效的短日期字符串表示形式。

public:
 System::String ^ ToShortDateString();
public string ToShortDateString ();
member this.ToShortDateString : unit -> string
Public Function ToShortDateString () As String

返回

String

一个字符串，它包含当前 DateTime 对象的短日期字符串表示形式。

示例

下面的示例演示 ToShortDateString 方法。 它还显示调用方法的结果与 ToShortDateString DateTime.ToString(String) 通过将 "d" 作为格式参数调用方法相同。

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

public class Example
{
   public static void Main()
   {
      DateTime dateToDisplay = new DateTime(2009, 6, 1, 8, 42, 50);
      CultureInfo originalCulture = Thread.CurrentThread.CurrentCulture;
      // Change culture to en-US.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
      Console.WriteLine("Displaying short date for {0} culture:",
                        Thread.CurrentThread.CurrentCulture.Name);
      Console.WriteLine("   {0} (Short Date String)",
                        dateToDisplay.ToShortDateString());
      // Display using 'd' standard format specifier to illustrate it is
      // identical to the string returned by ToShortDateString.
      Console.WriteLine("   {0} ('d' standard format specifier)",
                        dateToDisplay.ToString("d"));
      Console.WriteLine();

      // Change culture to fr-FR.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("fr-FR");
      Console.WriteLine("Displaying short date for {0} culture:",
                        Thread.CurrentThread.CurrentCulture.Name);
      Console.WriteLine("   {0}", dateToDisplay.ToShortDateString());
      Console.WriteLine();

      // Change culture to nl-NL.
      Thread.CurrentThread.CurrentCulture = new CultureInfo("nl-NL");
      Console.WriteLine("Displaying short date for {0} culture:",
                        Thread.CurrentThread.CurrentCulture.Name);
      Console.WriteLine("   {0}", dateToDisplay.ToShortDateString());

      // Restore original culture.
      Thread.CurrentThread.CurrentCulture = originalCulture;
   }
}
// The example displays the following output:
//       Displaying short date for en-US culture:
//          6/1/2009 (Short Date String)
//          6/1/2009 ('d' standard format specifier)
//
//       Displaying short date for fr-FR culture:
//          01/06/2009
//
//       Displaying short date for nl-NL culture:
//          1-6-2009

Imports System.Globalization
Imports System.Threading

Module Example
   Public Sub Main()
      Dim dateToDisplay As Date = #06/01/2009 8:42:50#
      Dim originalCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      ' Change culture to en-US.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("en-US")
      Console.WriteLine("Displaying short date for {0} culture:", _
                        Thread.CurrentThread.CurrentCulture.Name)
      Console.WriteLine("   {0} (Short Date String)", _
                        dateToDisplay.ToShortDateString())
      ' Display using 'd' standard format specifier to illustrate it is
      ' identical to the string returned by ToShortDateString.
      Console.WriteLine("   {0} ('d' standard format specifier)", _
                        dateToDisplay.ToString("d"))
      Console.WriteLine()
      
      ' Change culture to fr-FR.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("fr-FR")
      Console.WriteLine("Displaying short date for {0} culture:", _
                        Thread.CurrentThread.CurrentCulture.Name)
      Console.WriteLine("   {0}", dateToDisplay.ToShortDateString())
      Console.WriteLine()
  
      ' Change culture to nl-NL.    
      Thread.CurrentThread.CurrentCulture = New CultureInfo("nl-NL")
      Console.WriteLine("Displaying short date for {0} culture:", _
                        Thread.CurrentThread.CurrentCulture.Name)
      Console.WriteLine("   {0}", dateToDisplay.ToShortDateString())
      
      ' Restore original culture.
      Thread.CurrentThread.CurrentCulture = originalCulture
   End Sub
End Module
' The example displays the following output:
'       Displaying short date for en-US culture:
'          6/1/2009 (Short Date String)
'          6/1/2009 ('d' standard format specifier)
'       
'       Displaying short date for fr-FR culture:
'          01/06/2009
'       
'       Displaying short date for nl-NL culture:
'          1-6-2009

注解

DateTime使用 DateTimeFormatInfo.ShortDatePattern 与当前区域性关联的属性所定义的模式来设置当前对象的值的格式。 返回值与通过使用方法指定 "d" 标准 DateTime 格式字符串 返回的值相同 ToString(String) 。

备注

方法返回的字符串 ToShortDateString 是区分区域性的。 它反映由当前区域性的属性定义的模式 DateTimeFormatInfo.ShortDatePattern 。 例如，对于 en-us 区域性，标准短日期模式为 "M/d/yyyy";对于取消的区域性，它是 "dd. MM. yyyy";对于 ja-jp 区域性，它为 "yyyy/MM/dd"。 请注意，根据 .NET 实现及其版本、操作系统及其版本和用户自定义情况，其值会有所不同。

有关当前线程区域性的详细信息，请参阅 CultureInfo.CurrentCulture 和 Thread.CurrentCulture 属性。 有关格式字符、格式模式以及它们生成的输出的详细信息，请参阅标准日期和时间格式字符串和自定义日期和时间格式字符串。 有关更改与格式字符相关的格式模式的详细信息，请参阅 DateTimeFormatInfo 类。

适用于

另请参阅