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swift中@available 和 #available的用法

Posted on 2016-05-16 by admin

今天在查看 Alamofire 的时候,发现有些函数前面加有“@available(*, deprecated=3.4.0)”的语句,发现是swift2.0中引入的可用性概念。介绍文章:http://swift.gg/2016/04/13/swift-qa-2016-04-13/

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