Swift iOS 8浮动到textField中

Question

如何在swift中将浮点数放入textField，下面是我如何使用Int

oneValue、twoValue、threeValue都是textFields

   @IBAction func calculateButton(sender: UIButton) {
    var value1 = oneValue.text .toInt()
    value1 = value1! * 5
    var value2 = twoValue.text .toInt()
    value2 = value2! * 3
    var value3 = threeValue.text .toInt()
    value3 = value3! * 8


    totalTextField.text = " $ \(value1! + value2! + value3!)"

Answer 1

这两种类型在语法上没有区别。如果你想知道如何格式化浮点数，在SO上至少有两篇很好的文章。简而言之，在游乐场上：

let one:Float = 1.0, two:Float = 2.0, three:Float = 3.0
let s = "\(one + two + three)"
s // 6.0