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golang_design_pattern

Code to achieve the design model with golang

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设计模式

用golang语言实现设计模式

设计模式的六大原则

摘自 Java开发中的23种设计模式详解

  • 1、开闭原则(Open Close Principle)

    开闭原则就是说对扩展开放,对修改关闭。在程序需要进行拓展的时候,不能去修改原有的代码,实现一个热插拔的效果。 所以一句话概括就是:为了使程序的扩展性好,易于维护和升级。想要达到这样的效果,我们需要使用接口和抽象类,后 面的具体设计中我们会提到这点。

  • 2、里氏代换原则(Liskov Substitution Principle)

    里氏代换原则(Liskov Substitution Principle LSP)面向对象设计的基本原则之一。 里氏代换原则中说,任何 基类可以出现的地方,子类一定可以出现。 LSP是继承复用的基石,只有当衍生类可以替换掉基类,软件单位的功能不受 到影响时,基类才能真正被复用,而衍生类也能够在基类的基础上增加新的行为。里氏代换原则是对“开-闭”原则的补充。 实现“开-闭”原则的关键步骤就是抽象化。而基类与子类的继承关系就是抽象化的具体实现,所以里氏代换原则是对实现抽 象化的具体步骤的规范。—— From Baidu 百科

  • 3、依赖倒转原则(Dependence Inversion Principle)

    这个是开闭原则的基础,具体内容:真对接口编程,依赖于抽象而不依赖于具体。

  • 4、接口隔离原则(Interface Segregation Principle)

    这个原则的意思是:使用多个隔离的接口,比使用单个接口要好。还是一个降低类之间的耦合度的意思,从这儿我们看出, 其实设计模式就是一个软件的设计**,从大型软件架构出发,为了升级和维护方便。所以上文中多次出现:降低依赖,降低耦合。

  • 5、迪米特法则(最少知道原则)(Demeter Principle)

    为什么叫最少知道原则,就是说:一个实体应当尽量少的与其他实体之间发生相互作用,使得系统功能模块相对独立。

  • 6、合成复用原则(Composite Reuse Principle)

    原则是尽量使用合成/聚合的方式,而不是使用继承。

文档

https://godoc.org/github.com/BPing/golang_design_pattern/pattern GoDoc

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