一个简单地计算器，可以加减乘除，除法还有问题，待解决。
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| //
// ViewController.swift
// Simple Calculator
//
// Created by Will on 5/24/15.
// Copyright (c) 2015 gewill.org. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var text1: UITextField!
@IBOutlet weak var text2: UITextField!
@IBOutlet weak var result: UITextField!
@IBAction func BeZero(sender: AnyObject) {
self.result.text = "0"
self.text1.text = " "
self.text2.text = " "
}
@IBAction func plus(sender: AnyObject) {
// 三目运算符简洁，但是没有 if 逻辑清晰。
var num1 = self.text1.text.isEmpty ? 0 : self.text1.text.toInt()
var num2 = self.text2.text.isEmpty ? 0 : self.text2.text.toInt()
var resultNum:Double = Double(num1!) + Double(num2!)
println(resultNum)
self.result.text = "\(resultNum)"
self.text1.resignFirstResponder()
self.text2.resignFirstResponder()
}
@IBAction func minus(sender: AnyObject) {
// 三目运算符简洁，但是没有 if 逻辑清晰。
var num1 = self.text1.text.isEmpty ? 0 : self.text1.text.toInt()
var num2 = self.text2.text.isEmpty ? 0 : self.text2.text.toInt()
var resultNum = num1! - num2!
self.result.text = "\(resultNum)"
self.text1.resignFirstResponder()
self.text2.resignFirstResponder()
}
@IBAction func multiply(sender: AnyObject) {
// 三目运算符简洁，但是没有 if 逻辑清晰。
var num1 = self.text1.text.isEmpty ? 0 : self.text1.text.toInt()
var num2 = self.text2.text.isEmpty ? 0 : self.text2.text.toInt()
var resultNum = num1! * num2!
self.result.text = "\(resultNum)"
self.text1.resignFirstResponder()
self.text2.resignFirstResponder()
}
@IBAction func division(sender: AnyObject) {
// 三目运算符简洁，但是没有 if 逻辑清晰。
var num1 = self.text1.text.isEmpty ? 0 : self.text1.text.toInt()
var num2 = self.text2.text.isEmpty ? 0 : self.text2.text.toInt()
var resultNum = num1! / num2!
self.result.text = "\(resultNum)"
self.text1.resignFirstResponder()
self.text2.resignFirstResponder()
}
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.
}
}
|
