iOS开发之计算器

本项目基于swift3.0的语法。

 //
 //  ViewController.swift
 //  加法计算器
 //
 //  Created by 葛杨杨 on 2017/7/25.
 //  Copyright © 2017年 葛杨杨. All rights reserved.
 //

 import UIKit

 class ViewController: UIViewController {

     @IBOutlet weak var textOne: UITextField!
     @IBOutlet weak var textTwo: UITextField!
     @IBOutlet weak var resultLabel: UILabel!

     @IBAction func calculate() {
         var num1 = Int(self.textOne.text!)
         var num2 = Int(self.textTwo.text!)

         var resultNum = num1! + num2!

         var resultStr = "\(resultNum)"

         self.resultLabel.text = resultStr;

     }

     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
     }

     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }

 }