51单片机（普中板）红外遥控

#include <REGX52.H> 
#include "Delay.h"
#include "LCD1602.h"

unsigned char number;
void main()
{
    LCD_Init();
    LCD_ShowString(1,1,"A");
    
    IT0 = 1;  //1：下降沿触发（按下触发），0：低电平触发（按着持续触发）
    IE0 = 0;
    EX0 = 1;
    EA = 1;
    PX0 = 1;  //中断优先级
    
    while(1)
    {
        LCD_ShowNum(2,1,number,3);
    }

}

void Inte0_Rountine(void) interrupt 0
{
    number++;
}