C51学习

十六个数字循环显示

#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit D=P2^6;
sbit W=P2^7;
uchar num;
uint x,y,z;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void delay(uint);
void main()
{
W=1;
P0=0xc0;
W=0;
while(1)
{
for(num=0;num<16;num++)//十六个数字循环显示
{
D=1;
P0=table[num];
D=0;
delay(500);
}
}
}

void delay(uint z)
{
for(x=z;x>0;x--)
for(y=100;y>0;y--);
}