简单的Ruby 类

最新推荐文章于 2025-11-23 15:07:29 发布

最新推荐文章于 2025-11-23 15:07:29 发布 · 119 阅读

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#ruby

本文通过实例演示了如何在Ruby中定义和使用类，包括基本的类定义、属性的getter和setter方法，以及子类继承父类的过程。通过创建动物模块下的Animal基类和Dog子类，展示了初始化构造函数、属性访问器的实现方式。

简单的Ruby 类

建立下面的脚本文件，命名为C:\animals.rb，使用notepad++，选择格式为以UTF-8无BOM格式编码保存：

#模块声明, 类似于名称空间 module Animals class Animal # 类的默认构造函数 def initialize(name, species) @name=name @species=species end #getter for name attribute def name @name end #setter for name attribute def name=(nameVal) @name=nameVal end #getter for species attribute def species @species end #setter for species attribute def species=(speciesVal) @species=speciesVal end end # 类DogAnimal继承自Animal class DogAnimal < Animal def initialize(voice) super("Dog", "mammal") @voice = voice end #getter for voice attribute def voice @voice end #setter for voice attribute def voice=(voiceVal) @voice=voiceVal end end end #module Animals cat = Animals::Animal.new("Cat", "mammal"); dog = Animals::DogAnimal.new("WangWang"); 3.times{ print cat.name + " is a " + cat.species + "\n" print dog.name + "'s voice is: " + dog.voice + "\n" } =begin #ruby命令行运行脚本 ruby c:\animals.rb 结果显示: Cat is a mammal Dog's voice is WangWang Cat is a mammal Dog's voice is WangWang Cat is a mammal Dog's voice is WangWang =end