Swift加法计算器

概述//// ViewController.swift// Swift加法计算器//// Created by hehongbo on 16/8/31.// Copyright © 2016年 hhb. All rights reserved.//import UIKitclass ViewController: UIViewController { va

////  VIEwController.swift//  Swift加法计算器////  Created by hehongbo on 16/8/31.//  copyright © 2016年 hhb. All rights reserved.//import UIKitclass VIEwController: UIVIEwController {        var numtext1:UITextFIEld?    var numtext2:UITextFIEld?        var resultLabel:UILabel?        overrIDe func vIEwDIDLoad() {        super.vIEwDIDLoad()                setupUI()    }        // 计算    func clac() {        print("\(numtext1?.text) == \(numtext2?.text)")        // 将文本框内容转换为数值        // 先测试：let num1 = Int(numtext1?.text ?? "")//        let num1 = Int(numtext1?.text ?? "")//        let num2 = Int(numtext2?.text ?? "")                guard let num1 = Int(numtext1?.text ?? ""),num2 = Int(numtext2?.text ?? "") else {                            print("必须都输入数字才能计算")            return        }        // 处理结果        resultLabel?.text = "\(num1 + num2)"            }    func setupUI() -> () {        // 1.两个textFIEld        let tf1 = UITextFIEld(frame: CGRect(x: 20,y: 20,wIDth: 100,height: 30))        tf1.borderStyle = .roundedRect        tf1.text = "0"                vIEw.addSubvIEw(tf1)                let tf2 = UITextFIEld(frame: CGRect(x: 140,height: 30))        tf2.borderStyle = .roundedRect        tf2.text = "0"                vIEw.addSubvIEw(tf2)                // 记录属性        numtext1 = tf1        numtext2 = tf2                        // 2.三个label        let l1 = UILabel(frame: CGRect(x: 120,wIDth: 20,height: 30))        l1.text = "+"        l1.textAlignment = .center                vIEw.addSubvIEw(l1)                let l2 = UILabel(frame: CGRect(x: 240,height: 30))        l2.text = "="        l2.textAlignment = .center                vIEw.addSubvIEw(l2)                let l3 = UILabel(frame: CGRect(x: 250,wIDth: 60,height: 30))        l3.text = "0"        l3.textAlignment = .right                vIEw.addSubvIEw(l3)                resultLabel = l3                // 3.一个button        let btn = UIbutton()        btn.setTitle("计算",for: UIControlState(rawValue: 0))        btn.setTitlecolor(UIcolor.black(),for: UIControlState(rawValue: 0))        btn.sizetoFit()        btn.center = vIEw.center        vIEw.addSubvIEw(btn)                btn.addTarget(self,action: #selector(clac),for: .touchUpInsIDe)            }}

总结

以上是内存溢出为你收集整理的Swift加法计算器全部内容，希望文章能够帮你解决Swift加法计算器所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。