IOS UIStepper

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////  ViewController.swift//  UIStepper////  Created by liaojianguo on 15/11/15.//  Copyright © 2015年 liaojianguo. All rights reserved.//import UIKitclass ViewController: UIViewController {        var stepper:UIStepper!    var label:UILabel!        override func viewDidLoad() {        super.viewDidLoad()        stepper=UIStepper()        stepper.center=self.view.center        //设置stepper的范围与初始值        stepper.maximumValue=10        stepper.minimumValue=1        stepper.value=5.5        //设置每次增减的值        stepper.stepValue=0.5        //设置stepper可以按住不放来连续更改值        stepper.continuous=true        //设置stepper是否循环（到最大值时再增加数值从最小值开始）        stepper.wraps=true        stepper.addTarget(self,action:"stepperValueIschanged",            forControlEvents: UIControlEvents.ValueChanged)        self.view.addSubview(stepper)        label=UILabel(frame:CGRectMake(100,190,300,30))        print(stepper.value)        label.text = "当前值为：\(stepper.value)"        self.view.addSubview(label)    }        func stepperValueIschanged(){        label.text="当前值为：\(stepper.value)"    }}
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