单片机 C语言秒表程序 求修改!倒计时结束后又开始计时了怎么停下来...答:include<reg51.h> define uchar unsigned char define uint unsigned int uchar seg[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//显示0-9段码 uchar count,time;sbit start=P3^4;sbit stop=P3^5;sbit reset=P3^6;/***延时函数***/ void delay(uchar k){ uchar i...