Week11 王暄淇

使用for迴圈
 for(int led=13;led>=10;led--)
  {
   pinMode(led, OUTPUT);
  }

for(int led=13;led>=10;led--)
  {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(200);  

  }