VC++获取Windows操作系统的版本号和运行模式，因变量设置不同，这里检测到XP系统是Windows NT，其它参数都正常，包括补丁版本、内部版本号等。-VC++ for Windows operating system version number and operating mode, set the different dependent variable, where the system detects that XP is Windows NT, other parameters are normal, including the patched version, the internal version number.