这是我用汇编语言编写的计时器程序，通过计算机发命令开始倒计时，其中也有其他功能，但主要是倒计时，比较好用，这是个小程序，穿上来了表心意-This is the language I used compilation prepared by the timer procedures, through the computer started the countdown orders, which also has other functions, but the countdown is more convenient, it is a small program to put on the table liking