mxh.c

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#include<reg52.h>
#include <absacc.h>

#define LEDcom1 XBYTE[0Xf8ff]
#define LEDcom2 XBYTE[0Xf9ff]
#define LEDcom3 XBYTE[0Xfaff]
#define LEDcom4 XBYTE[0Xfbff]

sbit p2_7=P2^7;
sbit p2_6=P2^6;

unsigned char count;
unsigned char qian;
unsigned char bai;
unsigned char shi;
unsigned char ge;


unsigned char table[]={
							0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x67//0,1,2,3,4,5,6,7,8,9
					  };

void display()
{
	 	LEDcom4=table[ge];
		LEDcom3=table[shi];
		LEDcom2=table[bai];
		LEDcom1=table[qian];
}

void main()
{
	p2_7=0;
	p2_7=1;
	p2_7=0;

	while(1)
	{
		if(p2_6==1)
		{
			P1=P0;
			p2_7=0;
			p2_7=1;
			p2_7=0;
			count=P1;
			bai=count/100;
			shi=(count-100*bai)/10;
			ge=count-100*bai-10*shi;
			display();
		}
	}
}