c51 单片机实验_2 数码管

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int

uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80};
void delay(uint t)
{
for(;t!=0;t--);
}
void main(void)
{
uchar i;
for(i=0;i<9;i++)
{
P2=0x00;
P0=tab[i];
delay(60000);
}
}

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int

uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80};
void delay(uint t)
{
for(;t!=0;t--);
}
void main(void)
{
uchar i;
for(i=0;i<8;i++)
{
P2=~(0x01<<i);   //位码
P0=tab[i];	  //断码
delay(50);
}
}