为什么带有UITapGestureRecognizer的视图控制器崩溃？

Question

为什么我的应用程序在启动时会崩溃，但没有输入任何代码导致任何事情？

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let tap: UITapGestureRecognizer = UITapGestureRecognizer (target: self, action: #selector(ViewController.keyvoardDismiss))

        view.addGestureRecognizer(tap)
    }

    @objc func keyvoardDismiss() {
        view.endEditing(true)
    }

}

Answer 1

keyvoardDismiss不是类方法，请使用

#selector(keyvoardDismiss)