PlatformID 枚举

标识程序集所支持的操作系统（或平台）。

**命名空间:**System
**程序集:**mscorlib（在 mscorlib.dll 中）

语法

声明
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Enumeration PlatformID
用法
Dim instance As PlatformID

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public enum PlatformID

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public enum class PlatformID

/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public enum PlatformID

SerializableAttribute 
ComVisibleAttribute(true) 
public enum PlatformID

成员

	成员名称	说明
	Unix	操作系统为 Unix。
	Win32NT	操作系统为 Windows NT 或较新的版本。
	Win32S	操作系统为 Win32s（Win32 子集）类型。Win32s 是运行于 Windows 16 位版本上的层，它提供对 32 位应用程序的访问。
	Win32Windows	操作系统为 Windows 95 或较新的版本。
	WinCE	操作系统为 Windows CE。

备注

使用 Environment.OSVersion 和 OperatingSystem.Platform 属性可以获取当前正在执行的操作系统的 PlatformID 枚举。使用 PlatformID 枚举可帮助确定当前操作系统是否支持您的应用程序。

示例

下面的示例演示如何使用 PlatformID 类标识当前正在执行的操作系统。

' This example demonstrates the PlatformID enumeration.
Imports System

Class Sample
   Public Shared Sub Main()
      Dim msg1 As String = "This is a Windows operating system."
      Dim msg2 As String = "This is a Unix operating system."
      Dim msg3 As String = "ERROR: This platform identifier is invalid."
      
      ' Assume this example is run on a Windows operating system.
      Dim os As OperatingSystem = Environment.OSVersion
      Dim pid As PlatformID = os.Platform
      Select Case pid
         Case PlatformID.Win32NT, PlatformID.Win32S, _
              PlatformID.Win32Windows, PlatformID.WinCE
            Console.WriteLine(msg1)
         Case PlatformID.Unix
            Console.WriteLine(msg2)
         Case Else
            Console.WriteLine(msg3)
      End Select
   End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'
'This is a Windows operating system.
'

// This example demonstrates the PlatformID enumeration.
using System;

class Sample 
{
    public static void Main() 
    {
    string msg1 = "This is a Windows operating system.";
    string msg2 = "This is a Unix operating system.";
    string msg3 = "ERROR: This platform identifier is invalid.";

// Assume this example is run on a Windows operating system.

    OperatingSystem os = Environment.OSVersion;
    PlatformID     pid = os.Platform;
    switch (pid) 
        {
        case PlatformID.Win32NT:
        case PlatformID.Win32S:
        case PlatformID.Win32Windows:
        case PlatformID.WinCE:
            Console.WriteLine(msg1);
            break;
        case PlatformID.Unix:
            Console.WriteLine(msg2);
            break;
        default:
            Console.WriteLine(msg3);
            break;
        }
    }
}
/*
This example produces the following results:

This is a Windows operating system.
*/

// This example demonstrates the PlatformID enumeration.
using namespace System;
int main()
{
   String^ msg1 = L"This is a Windows operating system.";
   String^ msg2 = L"This is a Unix operating system.";
   String^ msg3 = L"ERROR: This platform identifier is invalid.";
   
   // Assume this example is run on a Windows operating system.
   OperatingSystem^ os = Environment::OSVersion;
   PlatformID pid = os->Platform;
   switch ( pid )
   {
      case PlatformID::Win32NT:
      case PlatformID::Win32S:
      case PlatformID::Win32Windows:
      case PlatformID::WinCE:
         Console::WriteLine( msg1 );
         break;

      case PlatformID::Unix:
         Console::WriteLine( msg2 );
         break;

      default:
         Console::WriteLine( msg3 );
         break;
   }
   return 1;
}

/*
This example produces the following results:

This is a Windows operating system.
*/

// This example demonstrates the PlatformID enumeration.
import System.*;

class Sample
{
    public static void main(String[] args)
    {
        String msg1 = "This is a Windows operating system.";
        String msg2 = "This is a Unix operating system.";
        String msg3 = "ERROR: This platform identifier is invalid.";
        // Assume this example is run on a Windows operating system.
        OperatingSystem os = Environment.get_OSVersion();
        PlatformID pid = os.get_Platform();
        switch (pid) {
            case PlatformID.Win32NT:
            case PlatformID.Win32S:
            case PlatformID.Win32Windows:
            case PlatformID.WinCE:
                Console.WriteLine(msg1);
                break;
            case PlatformID.Unix:
                Console.WriteLine(msg2);
                break;
            default:
                Console.WriteLine(msg3);
                break;
        }
    } //main
} //Sample
/*
    This example produces the following results:

    This is a Windows operating system.
*/

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

.NET Compact Framework

受以下版本支持：2.0、1.0

请参见

参考

System 命名空间