1.c

PROTEUS仿真程序

#include <reg51.h>

char dsp[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
char bs[]={0x01,0x02};
char bitd[2];

void reflash(unsigned char c)
	{
	char i,j;
	char k;
	bitd[1]=c/10;
	bitd[0]=c%10;
	for(i=0;i<5;i++)
		{
		for(j=0;j<2;j++)
			{
			P2=dsp[bitd[j]];
			P3=bs[j];
			for(k=0;k<10;k++);
			P3=0;
			}
		 }
	 }

void main()
	{
	unsigned char a;
	int b;
	while(1)
		{
		reflash(a);
		b++;
		if(b>500)
			{
			b=0;
			a++;
			if(a>99)
			a=0;
			}
		 }
	}