总结了以下几种方式，欢迎补充
3，为TextField绑定Did End On Exit事件
新建一个项目，打开Main.storyboard,添加一个Text Field,与ViewController建立连接，然后点击空白处，在右边窗口修改Custom Class 的class改为UIControl
然后为UIControl绑定Touch Up Inside事件(只有改为UIControl后才能绑定事件)
ViewController:
import UIKitclass ViewController: UIViewController { @IBOutlet var name: UITextField! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } @IBAction func CloseKeyBoard(sender: AnyObject) { name.resignFirstResponder(); } }只需要在ViewController里重写touchesEnded方法
//触摸事件，当一个或多个手指离开屏幕时触发 override func touchesEnded(touches: Set<NSObject>, withEvent event: UIEvent) { name.resignFirstResponder(); }
选择Main.storyboard中的Text Field，按住control拖拉的方式为其绑定Did End On Exit事件
@IBAction func DoneCloseKeyBoard(sender: AnyObject) { name.resignFirstResponder(); }
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