int Pyroelectric=3; void setup() { // put your setup code here, to run once: pinMode(LED_BUILTIN,OUTPUT); pinMode(Pyroelectric,INPUT); digitalWrite(LED_BUILTIN,LOW); Serial.begin(9600); } void loop() { // put your main code here, to run repeatedly: int data = digitalWrite(Pyroelectric); if(data == 0){ Serial.println(data); digitalWrite(LED_BUILTIN,HIGH); }else{ Serial.println(data); digitalWrite(LED_BUILTIN,LOW); } }如何增加参数

要增加参数，你可以在函数定义中添加参数列表，并在函数调用时传递相应的参数值。在这段代码中，你可以修改`loop()`函数，使其接受一个整数参数作为`Pyroelectric`引脚号。以下是修改后的代码示例：

void loop(int pyroelectricPin) {
  // put your main code here, to run repeatedly:
  int data = digitalRead(pyroelectricPin);
  if (data == LOW) {
    Serial.println(data);
    digitalWrite(LED_BUILTIN, HIGH);
  } else {
    Serial.println(data);
    digitalWrite(LED_BUILTIN, LOW);
  }
}

void setup() {
  // put your setup code here, to run once:
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(Pyroelectric, INPUT);
  digitalWrite(LED_BUILTIN, LOW);
  Serial.begin(9600);
}

int Pyroelectric = 3;

void loop() {
  loop(Pyroelectric); // 调用带参数的loop()函数
}

通过这种方式，你可以在调用`loop()`函数时传递不同的`Pyroelectric`引脚号，以便在不同的引脚上执行相同的操作。