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设计模式——开发常用的设计模式梳理 | 小小海小小燕的小小窝
source link: http://ouyangsihai.cn/2018/02/13/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F%E2%80%94%E2%80%94%E5%BC%80%E5%8F%91%E5%B8%B8%E7%94%A8%E7%9A%84%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F%E6%A2%B3%E7%90%86/#more
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. 基础学习：UML四种关系耦合度大小关系 泛化 = 实现 > 组合 > 聚合 > 关联 > 依赖依赖(Dependency)好好学java一个人(Person)可以买车(car)和房子(House)，那么就可以称：Person类依赖于Car类和House类 这里注意与下面的关联关系区分：Person类里并没有使用Car和House类型的属性，Car和House的实
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