数码管循环显示程序

#include<reg52.h>

#defineuchar unsigned char

#define uint unsigned int

uchar code table1[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71};

sbit wela=P2^7;

sbit dula=P2^6;

void show(uchar j,uchar k)//显示第几个数码管所显示的数字

{

wela=1;

P0=table1[j];//显示第几个数码管

wela=0;

P0=0xff;

dula=1;

P0=table[k];//要显示的数字

dula=0;

P0=0xff;

}

void main()//主函数

{

uint i,j;

while(1)

{

for(i=0;i<6000;i++)

{

for(j=0;j<6;j++)

{

show((j+i/1000)%6,j+1);

}

}

}

}