设计模式 - 单例模式
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posted @ 2018-02-08 17:17 东方🐺 阅读(6) 评论(0) 推荐(0) 编辑
Objective-C Polymorphism
摘要：
The word polymorphism means having many forms. Typically, polymorphism occurs when there is a hierarchy of classes and they are related by inheritance 阅读全文
posted @ 2018-02-08 10:48 东方🐺 阅读(130) 评论(0) 推荐(0) 编辑
