//: Playground - noun: a place where people can play

import UIKit

// 1.如何定義類
/*
 OC類的定義
 @interface Person : NSObject
 @end
 
 @impelment
 @end
 */

class Person {
    // 如果屬性是值類型, 則初始化為空值
    // 如果屬性是對象類型, 則初始化為nil值
    var name : String = ""
    var age : Int = 0
    var view : UIView?
}


// 2.創(chuàng)建類的對象
let view = UIView()

let p = Person()
p.name = "why"
p.age = 18
p.view = view