1,AnyObject :代表任何class类型的对象实例。
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 { } 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" ) } } |