var marks = [UIButton : [Double]]()
      var doubles = [Double]()
      var access = [UIButton]()

         @IBAction func Store(_ sender: Any) {
                        var button : UIButton
                        button = UIButton(type: .system) as UIButton
                        button.frame = CGRect(x:5, y: 20, width: 100.0, height: 30)
                        self.view.addSubview(button)
                        buttons.append(button)
                        marks[button] = doubles
// let defaults = UserDefaults.standard
// defaults.set(marks, forKey: "marks")



    }