51单片机试题,写一个用单个数码管显示10秒倒计时的程序,急!!!_百度...答:include <reg52.h> define uchar unsigned char define uint unsigned int sbit duan=P2^6;sbit wei=P2^7;uchar disp=0;uchar time=10;int miao=0;uchar code dispcode[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; //段...