Swift 8.set&get方法

来源：互联网发布：国外php免费空间编辑：程序博客网时间：2024/04/30 09:20

ViewController.swift

import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        let p = Person()                print(p.title)    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }}

Person.swift

import UIKitclass Person: NSObject {        var _name: String?//    var name: String? {//        set {//            _name = newValue//        }//        get {//            return _name//        }//    }            //只读属性  又叫做 计算性属性    //一旦只实实现了 get方法 默认的隐含形式 添加的set方法 就会失效    //并不会分配内存空间        var name: String? {        get {            return "zhangsan"        }    }            //并不需要分配内存空间//    var title: String? {//        get {//            return "Boos" + (name ?? "")//        }//    }            //简写方式    var title: String? {               return "Boos" + (name ?? "")    }        var model: NSObject? {        didSet {            //cell绑定数据        }    }            }

0 0