求单片机 数字钟 c语言代码注释答:include<reg51.h> unsigned char code su[11]={0x3f,0x06,0x5b,0X4F,0x66,0X6D,0x7d,0x07,0x7f,0x6f,0x40};//数码管显示 unsigned char xian[8]={0,0,10,0,0,10,0,0};unsigned char sen=0,min=0,hou=0,sen2=0,min2=0,hou2=0,sen3=59,min3=59,hou3=23,num;//变量...