//
//  ViewController.swift
//  Calculator
//
//  Created by Leon Zhang on 15/2/25.
//  Copyright (c) 2015年 Leon Zhang. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var display: UILabel!
    
    @IBAction func appendigit(sender: UIButton) {
        var digit = sender.currentTitle
        println(digit)
        if userisinthemiddleof
        
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
    }

    @IBOutlet weak var fff: UILabel!
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

  

}

