求89C51单片机简单中断程序,用C语言编写,题目如图答:include<reg51.h>#include "intrins.h"#include "absacc.h"#define uchar unsigned charuchar ledtab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40,0xff};//0-9uchar num,cnt;bit flag=0;void ext1() interrupt 2{flag=~flag;}void t1isr() interrupt 3//显示{...