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//紅外報警程序
#include <reg51.h>
#define uint unsigned int
#define uchar unsigned char
sbit hongwai=P1^0;//紅外傳感器
sbit led=P1^1;//LED報警指示燈
sbit beer=P1^2;//蜂鳴器的
//主函數
void main()
{
while(1)
{
if(hongwai==0)//報警
{
led=0;
beer=0;
}
if(hongwai!=0) //不報警
{
led=1;
beer=1;
}
}
}
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