51单片机 4位数码管可调的定时器C程序编写,请帮忙给个编程思路或相关程...答:include<reg51.h> define uchar unsigned char uchar code ledtab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//0-9 unsigned char sec=0,min=0,hour=12,scanled;unsigned char key,flashbit,dot,time,times=0;tflash;unsigned char disdat[4];sbit keyqt=P3^0;sbit...