if(analogRead(flame_left)<100)
{
digitalWrite(Beep,HIGH);
n=1;
}
else{
digitalWrite(Beep,LOW);
n=0;
}
if(digitalRead(flame_right)==LOW)
{
n=2;
}
else{
n=0;
}
Serial.println(n);
/*switch (n){
case 1:Serial.println("left");break;
case 2:Serial.println("right");break;*/
}
就这一段,上面的if有n=1赋值有问题,其他没问题