单片机定时器实验的代码怎么写?求详细注释。答:include<reg51.h>#define uchar unsigned charuchar t1,sec1,dscan=0,dis[3]={0,0,0};uchar table={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};void t0isr() interrupt 1{TH0=(65536-50000)/256;TL0=(65536-50000)%256;t1++;if(t1>=20){t1=0;sec1++;dis[0]=s...