C51单片机键盘行列式源程序附加DSN Proteus仿真 带注释

正文摘要:

#include   "reg51.h" unsigned  char  tab[]={0x0ee,0x0de,0x0be,0x7e,0x0ed,0x0dd,0x0bd,0x7d,0x0eb,0x0db,0x0bb,0x7b,0x0e7,0x0d7,0x0b7,0x77};//定义按键K0~K15的键码值 un ...