const int ledPin10 = 10 ;
const int buttonpin = 9;


void setup() {
pinMode(ledPin10, OUTPUT);
pinMode(buttonpin, INPUT);
}

void loop(){
int buttonState = digitalRead(buttonpin);

  if (buttonState == LOW){
  digitalWrite(ledPin10,LOW);
  }
 
  else{
  digitalWrite(ledPin10,HIGH);
  }
}