#define uchar unsigned char
#define uint  unsigned int
#define ulong unsigned long
#include <reg52.h>
#include <mylib.h>
extern bit relable;
sbit prem=P3^3;
void inidelay()
  {
      EA=1;
      ET1=1;
	  EX1=1;
	  ET0=0;
	  PT1=1;
	  PT0=1;
	  PX1=0;
	  IT1=1;
      TMOD=0X11;
      TH1=0Xff;
      TL1=0X50;
      TR1=0;
  }
static unsigned int bb=0x00;
void flash(void) interrupt 3
 {
     TH1=0Xff;
     TL1=0X50;
     bb++;							
 }
void delay(uint time)
  {	inidelay();
    TR1=1;
    while(bb<time);
    TR1=0;
	bb=0x00;
	return;
  }
void delay50()
{
uchar a,b;
for(a=0;a<110;a++)
for(b=0;b<255;b++);
}