获取本地计算机的操作系统

OSVERSIONINFO os;
 os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 GetVersionEx(&os);
 CString strOS;
 if(os.dwPlatformId == 0)
 {
  strOS = "Win32";
 }
 else if(os.dwPlatformId == 1)
 {
  if(os.dwMinorVersion == 0) strOS = "Windows 95 ";
  else if(os.dwMinorVersion == 10) strOS = "Windows 98 ";
  strOS += os.szCSDVersion;
 }
 else if(os.dwPlatformId == 2)
 {
  if(os.dwMajorVersion ==3)
  {
            strOS = "Windows NT 3.51";
  }
        else if(os.dwMajorVersion == 4)
  {
            strOS = "Windows NT 4.0";
  }
  else if(os.dwMajorVersion == 5)
  {
   if(os.dwMinorVersion == 0) strOS = "Windows 2000 ";
   else if(os.dwMinorVersion == 1) strOS = "Windows XP ";
   else if(os.dwMinorVersion == 2) strOS = "Windows Server 2003 ";
  }
  else if(os.dwMajorVersion == 6)
  {
   if(os.dwMinorVersion == 0) strOS = "Windows Vista ";
   else if(os.dwMinorVersion == 1) strOS = "Windows 7 ";
  }
  strOS += os.szCSDVersion;
 }
 m_strVersion = strOS;