sdq.c

没有用锁存器来做的动态数码管显示。 用c语言写的89c51

#include <reg51.h>
#define uint unsigned int
#define uchar unsigned char
uchar code table[]={0x3f,0x06,0x5b,0x4f, 
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c 
 ,0x39,0x5e,0x79,0x71};
uchar code tab[]={0xfe,0xfd,0xfb,0xf7};
void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
	for(y=110;y>0;y--);
}
void display()
{
		P3=tab[0];
		P1=table[0];
		delay(10);
		P3=tab[1];
		P1=table[1];
		delay(10);
		P3=tab[2];
		P1=table[2];
		delay(10);
		P3=tab[3];
		P1=table[3];
		delay(10);


}
void main()
{
	while(1)
	{
		display();
	}
}