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import UIKit
class ViewController: UIViewController {
@IBOutlet weak var textOne: UITextField!
@IBOutlet weak var textTwo: UITextField!
@IBOutlet weak var textResult: UILabel!
@IBAction func calculate() {
var num1 = self.textOne.text.toInt()//從UITextField讀取int
var num2 = self.textTwo.text.toInt()
if (self.textOne.text.isEmpty){
num1 = 0
}
if (!self.textTwo.hasText()){
num2 = 0
}
var resultNum = num1! + num2!//加！號?
//兩種從int轉string的方法
var resultString = String.convertFromStringInterpolationSegment(resultNum)
var resultString2 = "\(resultNum)"
self.textResult.text = resultString2 //UILabel賦值
self.textOne.endEditing(true)
self.textTwo.endEditing(true)
}
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.
}
}
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