8u们，arduino纯新手，请问为什么这里按了按钮蜂鸣器不会响呢

呃呃代码是这样的
// C++ code
//
void setup()
{
pinMode(10,INPUT);
pinMode(9,INPUT);
pinMode(8,INPUT);
digitalWrite(8,HIGH);
digitalWrite(9,HIGH);
digitalWrite(10,HIGH);
pinMode(11,OUTPUT);
pinMode(12,OUTPUT);
pinMode(13,OUTPUT);
}
void loop()
{
if(digitalRead(10)==LOW)
{
tone(7, 2093, 10);
digitalWrite(13,HIGH);
}
else
{
noTone(7);
digitalWrite(13,LOW);
}
if(digitalRead(9)==LOW)
{
tone(7, 2349, 10);
digitalWrite(12,HIGH);
}
else
{
noTone(7);
digitalWrite(12,LOW);
}
if(digitalRead(8)==LOW)
{
tone(7, 2637, 10);
digitalWrite(11,HIGH);
}
else
{
noTone(7);
digitalWrite(11,LOW);
}
}

led会亮但是蜂鸣器不会响

顶

精通arduino设计，加我