xcode 8 如何读取 text feild的值
刚开始学swift,以前的教程是 self.textfild.text.toInt(),现在换成了Int(self.textfild.text),但是编译过了,但是不显示结果
@IBOutlet weak var textone: UITextField!
@IBOutlet weak var texttwo: UITextField!
@IBOutlet weak var resultl: UILabel!
@IBAction func calculate() {
let num1 = Int(self.textone.text!)
let num2 = Int(self.texttwo.text!)
var resultNum = num1! + num2!
self.resultl.text = resultNum