Swift01-設置button

override func viewDidLoad() {
super.viewDidLoad()

//        var button:UIButton = UIButton(type:.ContactAdd)
        var button:UIButton = UIButton(type:.InfoDark);

    //設置按鈕位置和大小

  button.frame = CGRectMake(10, 200, 100, 30)

    //設置frame可以簡化爲

  var button2 = UIButton(frame:CGRectMake(10, 250, 200, 100))

    //按鈕文字以及文字顏色的設置

        button2.setTitle("button2", forState: UIControlState.Normal)
        button2.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)

    //添加button2到self.view

        self.view.addSubview(button2);

    button.setTitle("按鈕", forState: UIControlState.Normal);
    //設置按鈕圖片

button2.setImage(UIImage(named:"icon"), forState: UIControlState.Normal)

    self.view .addSubview(button);
    //設置背景顏色

//        button.backgroundColor = UIColor.redColor()

    //設置button點擊事件（這裏跟oc有點區別 oc是@selector）

        button2.addTarget(self, action: #selector(buttonPressed), forControlEvents: UIControlEvents.TouchUpInside)

}
//        不傳遞觸摸對象（即點擊的按鈕）

  func buttonPressed(){
        print("tapped")
    }