怎样用keil编写4位数码管显示1234的程序答:这是用C编的:共阴数码管#include<reg52.h> define uint unsigned int define uchar unsigned char sbit dula=P2^6;sbit wela=P2^7;uint temp=1234;uchar code table[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71} ;void play(uint)...