电子-1608.txt

#include"reg51.h"   
#include"intrins.h"   
#define ding P1   
#define shuju P0   
#define dizhi P2   
#define pan P3   
sbit guan1=P2^7;   
sbit guan2=P2^6;   
sbit guan3=P2^5;   
sbit suo=P1^7;   
sbit niu1=P3^1;   
sbit niu2=P3^2;   
sbit niu3=P3^3;   
sbit niu4=P3^4;    
sbit ce=P3^5;   
sbit oe=P3^7;   
sbit we=P3^6;   
///////////////显示代码/////////////////////////////   
unsigned char dai[10]={   
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};   
////////////// 键盘键码存储器////////////////////////   
static unsigned char jian=0;   
/////////////////显示数值寄存器///////////////////   
static unsigned char xian=0;   
///////////////////延时程序///////////////////   
void delay(unsigned char a)   
{   
 unsigned char b,c;   
 for(b=a;b>=1;b--)   
  for(c=128;c>=1;c--);