单片机可调数字钟闹钟整点报时功能（带Proteus仿真电路图+源码+pcb图）

正文摘要:

sbit beep=P2^1; sbit s2=P1^1;   sbit s3=P1^2;   sbit s4=P1^3;   bit flag; uchar shi,fen,miao,ri,yue,nin,k; uchar num,num1,count; uint i,sh,ge,s,g; uchar ...