怎么用c语言写单片机89C51的程序,要写的程序是,0~99秒的秒表,到99s停...答:可根据以下程序修改:include<reg52.h> define uchar unsigned char define uint unsigned int uchar a , b=0;sbit wei1=P1.0;sbit wei2=P1.1;//共阴数码管七段码 uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77};void Delay1ms(uint i) //...