键盘控制单片机的程序,想看就看吧,绝对有效,我用c52的试过 你说呢?-keyboard control procedures watch on the Look here, totally effective, I tried using the c52 you say

51单片机实现4*5矩阵键盘C语言编程，采用反接扫描法。-51 MCU 4* 5 matrix the keyboard C language programming, reverse scan method.