UIButton的继承链:
UIButton > UIControl > UIView > UIResponder > NSObject
参考:
http://www.cnblogs.com/chen1987lei/archive/2011/09/09/2172757.html
UIButton的继承链:
UIButton > UIControl > UIView > UIResponder > NSObject
参考:
http://www.cnblogs.com/chen1987lei/archive/2011/09/09/2172757.html
本文标题:UIButton的继承链
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