MFC/WIN32等窗口子系统应用程序，加入控制台窗口.

1.生成后事件 ——>命令行:editbin /subsystem:console $(OutDir)$(ProjectName).exe

2.

void CreateConsole( )
{
    AllocConsole();

    HANDLE handle_out = GetStdHandle(STD_OUTPUT_HANDLE);
    int hCrt = _open_osfhandle((long) handle_out, _O_TEXT);
    FILE* hf_out = _fdopen(hCrt, "w");
    setvbuf(hf_out, NULL, _IONBF, 1);
    *stdout = *hf_out;

    HANDLE handle_in = GetStdHandle(STD_INPUT_HANDLE);
    hCrt = _open_osfhandle((long) handle_in, _O_TEXT);
    FILE* hf_in = _fdopen(hCrt, "r");
    setvbuf(hf_in, NULL, _IONBF, 128);
    *stdin = *hf_in;

    // use the console just like a normal one - printf(), getchar(), ...
}

3.

AllocConsole();

freopen("conout$","w",stdout) ;

freopen("conout$","w",stderr) ;

4.

   AllocConsole() ;
    HANDLE hd = GetStdHandle(STD_OUTPUT_HANDLE) ;
    WriteConsole(hd , "hello world" , sizeof("hello world") , NULL , NULL );
    CloseHandle(hd) ;