MFC制作的类似于系统自带的计算器，能够实现所设置按键的各种功能。-MFC produced similar system comes with the calculator, to achieve the set button functions.

这是一个基于MFC的键盘响按键应程序。程序中设置了一部分按键，可以响应程序。例如上下左右。-This is an MFC-based keyboard sound keys should be procedures. Key part of the program set up, can respond to programs. For example, up and down about.