显示控制台，并且能用print打印显示，方便调试

::AllocConsole();
::SetConsoleTitle(_T("测试控制台"));
freopen("conin$","r+t",stdin);
freopen("conout$","w+t",stdout);
freopen("conerr$","w+t",stderr);
//释放
FreeConsole();

win32控制台工程隐藏dos窗口

#pragma comment( linker, "/subsystem:windows /entry:mainCRTStartup" )