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17 lines
382 B
17 lines
382 B
6 years ago
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观察者模式
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#### 目录
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1. 思维导图
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2. 概述
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3.
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#### 思维导图
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#### 概述
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观察者模式定义了对象间一种一对多的依赖关系，使得每当一个对象改变状态，则所有依赖它的对象都会得到通知并自动更新。它的最重要作用就是解耦，将被观察者和观察者解耦，使得它们之间的依赖性更小。
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