單片機(jī)數(shù)字鐘計(jì)時(shí)倒計(jì)時(shí)準(zhǔn)點(diǎn)報(bào)時(shí)程序

正文摘要:

#include "reg51.h"    typedef unsigned int u16;    typedef unsigned char u8; // sbit naodeng=P2^0;   sbit K1=P3^0;    sbit K2=P3^2;   sbit ...