数码管循环显示

在第二、三个数码管上00到99循环显示。

#include

#define uchar unsigned char

#define uint unsigned int

uchar

shumaguanbiao[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77, 0x7c,0x39,0x5e,0x79,0x71}; //共阴

uchar xianshi[]={0xfd,0xfb};

sbit duan=P3^0;

void delay()

{

uint k;

for(k=500;k>0;k--);

}

void main()

{

uint j,i,f;

while(1)

{

for(i=0;i<=9;i++){

for(j=0;j<=9;j++){

for(f=80;f>0;f--){

duan=1;

P2=shumaguanbiao[j];

duan=0;

P1=xianshi[1];

delay();

P2=0X00;

duan=1;

P2=shumaguanbiao[i];

duan=0;

P1=xianshi[0];

delay();

P2=0X00;

}

}

}

}

}