直接调用下列代码即可

using namespace std;

struct WindowVersion{
  DWORD marjorVer; //大版本号
  DWORD minorVer; // 小版本号
  DWORD buildNumber; //构建版本号
};

//获取系统版本
WindowVersion getSystemVersion()
{
  WindowVersion wv;
  OSVERSIONINFOW ver_info;
  ver_info.dwOSVersionInfoSize = sizeof(ver_info); //初始化结构体大小
  GetVersionEx(&ver_info);
  wv.marjorVer = ver_info.dwMajorVersion;
  wv.minorVer = ver_info.dwMinorVersion;
  wv.buildNumber = ver_info.dwBuildNumber;
  return wv;
}