您应该在应用程序中注册按键事件(假设这是Windows GUI应用程序)，而不是忙于查询按键，并检查按键您感兴趣.

Rather than busy-polling for a keypress, you should register for key events in your application (assuming this is a Windows GUI app), and check for the keys you're interested in.

如果您实际上是在制作控制台应用程序，请参见此处: C ++控制台键盘事件

If you are actually making a console app, see here: C++ console keyboard events