用c语言如何灵活地控制键盘，这里提供键盘上所有键的常量定义。你可以包含在你的头文件中，然后就可以在你的程序中随心所欲地使用了。-how to use the flexibility to control the keyboard, it provides all the keys on the keyboard definition of the constants. You can include in your first document, then you can process the