设备

include <reg52.h>

sbit LED = P1^0; //定义LED灯的控制引脚
sbit AIR_SENSOR = P2^0; //定义空气传感器的引脚
sbit AIR_PURIFIER = P2^1; //定义空气净化器的引脚

void main()
{

while(1)
{
    if(AIR_SENSOR == 1) //如果检测到空气质量不佳
    {
        AIR_PURIFIER = 1; //开启空气净化器
        LED = 1; //LED灯亮起表示空气净化器已开启
    }
    else //如果空气质量良好
    {
        AIR_PURIFIER = 0; //关闭空气净化器
        LED = 0; //LED灯熄灭表示空气净化器已关闭
    }
}

}