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  • Swift

    1,AnyObject :代表任何class类型的对象实例。
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    class Man{
    }
     
    class Woman{
    }
     
    let man = Man()
    let woman = Woman()
    var arr:[AnyObject] = [man,woman]
     
    for people in arr {
        if let m = people as? Man {
            println("这是个男人")
        }else if let w = people as? Woman {
            println("这是个女人")
        }
    }

    2,Any :范围更广,代表除函数外任何类型的实例。
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    class Man{
    }
     
    class Woman{
    }
     
    var arr:[Any] = [Any]()
    arr.apppend(1)
    arr.append("hangge.com")
    arr.append(Man())
    arr.append(Woman())
     
    for any in arr {
        switch any {
            case let any as Int:
                println("这是个Int类型")
            case let any as String:
                println("这是个String类型")
            case let any as Man:
                println("这是个男人类型")
            case let any as Woman:
                println("这是个女人类型")
            default:
                println("这是个未知类型")
        }
    }
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  • 原文地址:https://www.cnblogs.com/Free-Thinker/p/4838439.html
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