/*

  Blink

  Turns an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO

  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to

  the correct LED pin independent of which board is used.

  If you want to know what pin the on-board LED is connected to on your Arduino

  model, check the Technical Specs of your board at:

  https://www.arduino.cc/en/Main/Products

  modified 8 May 2014

  by Scott Fitzgerald

  modified 2 Sep 2016

  by Arturo Guadalupi

  modified 8 Sep 2016

  by Colby Newman

  This example code is in the public domain.

  http://www.arduino.cc/en/Tutorial/Blink

*/

// the setup function runs once when you press reset or power the board

void setup() {

  // initialize digital pin LED_BUILTIN as an output.

  pinMode(LED_BUILTIN, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {

  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)

  delay();                       // wait for a second

  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW

  delay();                       // wait for a second

}

int led1=;

int led2=;

int led3=;

int n;

void setup() {

  // put your setup code here, to run once:

  //设置各个引脚的初始状态

  for(n=;n<=;n++)

  {

    pinMode(n, OUTPUT);

  }

}

void loop() {

  // put your main code here, to run repeatedly:

  turn1();//顺序点亮，顺序熄灭

  clean();  //灭掉所有灯

  turn2();//3灯齐闪

  clean();//灭掉所有灯

}

void turn1()  //顺序点亮，顺序熄灭

{

  for(n=;n<=;n++)

{

    digitalWrite(n,HIGH);

    delay();

}

  for(n=;n<=;n++)

{

    digitalWrite(n,LOW);

    delay();

}

}

void turn2()//3灯齐闪3次

{

for(int x=;x<=;x++)

{

  for( n=;n<=;n++)

{

    digitalWrite(n,HIGH);

}

delay();

  for(n=;n<=;n++)

{

    digitalWrite(n,LOW);

}

delay();

}

}

void clean()

{

for(n=;n<=;n++)

{

    digitalWrite(n,LOW);

}

delay();

}