您好,登錄后才能下訂單哦!
swift怎么實現(xiàn)簡易計算器項目,很多新手對此不是很清楚,為了幫助大家解決這個難題,下面小編將為大家詳細講解,有這方面需求的人可以來學(xué)習(xí)下,希望你能有所收獲。
首先在storyboard中搭建出界面
接著上viewcontroller代碼
import UIKit class ViewController: UIViewController { @IBOutlet weak var result: UILabel! var n1: String = "" var n2: String = "" var n3: String = "" 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. } @IBAction func didClick(sender: UIButton) { let temp = sender.currentTitle if temp == "AC" { n1 = "" n2 = "" result.text = "0" return } else if temp == "+" || temp == "-" || temp == "*" || temp == "/" { n1 = result.text! n2 = "" n3 = temp! return } else if temp == "=" { var result1: Double = 0 println("n1:"+n1+" n2:"+n2) switch n3 { case "+": result1 = (n1 as NSString).doubleValue + (n2 as NSString).doubleValue case "-": result1 = (n1 as NSString).doubleValue - (n2 as NSString).doubleValue case "*": result1 = (n1 as NSString).doubleValue * (n2 as NSString).doubleValue case "/": result1 = (n1 as NSString).doubleValue / (n2 as NSString).doubleValue default: result1 = 0 } result.text = "\(result1)" n3 = "" return } if n3 != "" { n2 = n2 + temp! result.text = n2 }else { n1 = n1 + temp! result.text = n1 } } }
最后效果圖
看完上述內(nèi)容是否對您有幫助呢?如果還想對相關(guān)知識有進一步的了解或閱讀更多相關(guān)文章,請關(guān)注億速云行業(yè)資訊頻道,感謝您對億速云的支持。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進行舉報,并提供相關(guān)證據(jù),一經(jīng)查實,將立刻刪除涉嫌侵權(quán)內(nèi)容。