在.NET中轻松得到OS的版本号(小议)

没事做就想来写点东西,其实没什么大不了的,相信谁都会

就是谁都会,我为什么要写?费话闲着没事.OK,开始吧,首先

介绍一下一个API函数.GetVersionEX,这个函数用来返回一个

结构OVSVERSIONINFO该结构用来记录版本信息.以下是一段VB的代码
Option Explicit

Private Const VER_PLATFORM_WIN32s = 0
Private Const VER_PLATFORM_WIN32_WINDOWS = 1
Private Const VER_PLATFORM_WIN32_NT = 2

Private Const VER_NT_WORKSTATION = 1
Private Const VER_NT_DOMAIN_CONTROLLER = 2
Private Const VER_NT_SERVER = 3

Private Type OSVERSIONINFOEX
    dwOSVersionInfoSize As Long
    dwMajorVersion As Long
    dwMinorVersion As Long
    dwBuildNumber As Long
    dwPlatformId As Long
    szCSDVersion As String * 128      '  Maintenance string for PSS usage
    wServicePackMajor As Integer 'win2000 only
    wServicePackMinor As Integer 'win2000 only
    wSuiteMask As Integer 'win2000 only
    wProductType As Byte 'win2000 only
    wReserved As Byte
End Type

Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (ByRef lpVersionInformation As OSVERSIONINFOEX) As Long

Private Function GetVersionInfo() As String
    Dim myOS As OSVERSIONINFOEX
    Dim bExInfo As Boolean
    Dim sOS As String

    myOS.dwOSVersionInfoSize = Len(myOS) 'should be 148/156
    'try win2000 version
    If GetVersionEx(myOS) = 0 Then
        'if fails
        myOS.dwOSVersionInfoSize = 148 'ignore reserved data
        If GetVersionEx(myOS) = 0 Then
            GetVersionInfo = "Microsoft Windows (Unknown)"
            Exit Function
        End If
    Else
        bExInfo = True
    End If
   
    With myOS
        'is version 4
        If .dwPlatformId = VER_PLATFORM_WIN32_NT Then
            'nt platform
            Select Case .dwMajorVersion
            Case 3, 4
                sOS = "Microsoft Windows NT"
            Case 5
                sOS = "Microsoft Windows 2000"
            End Select
            If bExInfo Then
                'workstation/server?
                If .wProductType = VER_NT_SERVER Then
                    sOS = sOS & " Server"
                ElseIf .wProductType = VER_NT_DOMAIN_CONTROLLER Then
                    sOS = sOS & " Domain Controller"
                ElseIf .wProductType = VER_NT_WORKSTATION Then
                    sOS = sOS & " Workstation"
                End If
            End If
           
            'get version/build no
            sOS = sOS & " Version " & .dwMajorVersion & "." & .dwMinorVersion & " " & StripTerminator(.szCSDVersion) & " (Build " & .dwBuildNumber & ")"
           
        ElseIf .dwPlatformId = VER_PLATFORM_WIN32_WINDOWS Then
            'get minor version info
            If .dwMinorVersion = 0 Then
                sOS = "Microsoft Windows 95"
            ElseIf .dwMinorVersion = 10 Then
                sOS = "Microsoft Windows 98"
            ElseIf .dwMinorVersion = 90 Then
                sOS = "Microsoft Windows Millenium"
            Else
                sOS = "Microsoft Windows 9?"
            End If
            'get version/build no
            sOS = sOS & "Version " & .dwMajorVersion & "." & .dwMinorVersion & " " & StripTerminator(.szCSDVersion) & " (Build " & .dwBuildNumber & ")"
        End If
    End With
    GetVersionInfo = sOS
End Function
Private Function StripTerminator(sString As String) As String
    StripTerminator = Left$(sString, InStr(sString, Chr$(0)) - 1)
End Function

很麻烦是吗?是的,很,非常麻烦,那有什么好一点的办法吗?是的有,你看看

我保证你可以在System的命名空间中找到Environment和Version这两个类

你看通过名字你也猜的到,它们的作用一下是Version中的公共成员用来记录

版本信息
Build 获取此实例版本号的内部版本号部分的值。
Major 获取此实例版本号的主版本号部分的值。
Minor 获取此实例版本号的次版本号部分的值。
Revision 获取此实例版本号的修订号部分的值。

那OS呢?别忘了Environment它,Environment.OSVersion它的这个静态成员

正是用来解决问题的.

以下是OS版本参考表:

 

////////////////////

PlatformID

Major Version

Minor Version

Operating System

Win32Windows

>= 4

0

Win95

Win32Windows

>= 4

> 0 && < 90

Win98

Win32Windows

>= 4

> 0 && >= 90

WinMe

Win32NT   

<= 4

0

WinNT

Win32NT    5

5

0

Win2K

Win32NT    5

5

> 0

WinXP

好啦,费话说完了,估计会骂评如潮.我准备好了.来吧.