m0_63635264的博客

原创 51单片机数码管秒表

左下角的独立按键k1控制开始和暂停 ，k2按一下加一小时，k3按一下加十分钟，k4按一下加一分钟 #include<reg52.h> typedef unsigned int u16; typedef unsigned char u8; char mb[8],key2biao=0,key3biao=0,key4biao=0,key1biao=0; u16 n=10,ss; long temp,aa,s; sbit key1=P3^1; sbit key2=P3^0; sbit...