Swift version Hello

Import Uikitclass Viewcontroller:uiviewcontroller {        @IBOutlet var Button:uibutton?    var alertview:uialertview?    Override Func Viewdidload () {        super.viewdidload ()        //Do any additional setup after loading the view, typically fro M a nib.    }    Override Func didreceivememorywarning () {        super.didreceivememorywarning ()        //Dispose of any of the resources that can Be recreated.    }    @IBAction func buttonpressed (sender:anyobject) {        NSLog (button!. titlelabel!. text!)        var Alertview:uialertview = Uialertview (title: "Is Sure", Message: "Look this", Delegate:nil, Cancelbuttontitle: " OK ")        alertview.show ()    }}

There are two places to connect:

1. Design view and code declaration for button-defined connections

2. Design the connection between the View's button click event and the Code function

Open the code files and views at the same time with the auxiliary view, and control-drag the button to the code, you can establish the corresponding connection

Swift version Hello