Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul.
歲月留痕，只及肌膚；激情不再，皺起心靈。———— Samuel Ullman
在xcode8 swift3中已經(jīng)已經(jīng)棄用了UIAlertView控件，統(tǒng)一使用UIAlertController代替，以下是UIAlertController的簡單示例。IBAction func myBtn(_ sender: Any) { let alertController = UIAlertController(title: "Demo", message: "確定還是取消", preferredStyle: .actionSheet) //定義取消按鈕及事件 let cancelAction = UIAlertAction(title: "取消", style: .cancel, handler...