4
如何初始化相互依赖的属性
我希望图片移到底部。如果按按钮，图片应向下移动1。 我添加了图片和一个按钮： var corX = 0 var corY = 0 var runter: UIButton = UIButton.buttonWithType(UIButtonType.System) as UIButton var image = UIImage(named: "panzerBlau.jpg"); var panzer = UIImageView(frame: CGRectMake(corX, corY, 30, 40)); // override func viewDidLoad() { super.viewDidLoad() panzer.image = image; // self.view.addSubview(panzer); // runter.frame = CGRectMake(100, 30, 10 , 10) runter.backgroundColor …