int led = 13;
int buttonPin = 8;
int buttonState ;
void setup() {
  // put your setup code here, to run once:
  pinMode(led,OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
   digitalWrite(buttonState,HIGH);
  buttonState = digitalRead(buttonPin);
  {
  if (buttonState == LOW);
  digitalWrite(led,HIGH);
  }
  else
  digitalWrite(led,LOW);
  }
}