简单的Ruby 类

2gua 发表于 2011-07-22 09:54

[转帖]来源：Linux社区作者：cheungmine

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
   defname=(nameVal)
         @name=nameVal
   end

   #getter for species attribute
   def species
         @species
   end

   #setter for species attribute
   defspecies=(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
   defvoice=(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

2gua 发表于 2011-07-25 13:54

呃，都没人理吗？

bugbugbug3 发表于 2011-07-25 18:12

setter 和 getter 为啥不用attr_accessor ？ attr_accessor能更简洁一些。

2gua 发表于 2011-07-26 08:08

入门的教程吧，先从简单概念阐述起。

sykp241095 发表于 2011-07-26 10:20

写的真好

2gua 发表于 2011-07-26 12:43

楼上貌似很久没出现了。

sykp241095 发表于 2011-07-26 13:05

:-)，很久没来这了，但期间实践了一些啊，http://huoxy.me/

2gua 发表于 2011-07-26 20:57

哦，你的博客啊，挺不错的啊。

i_love_ruby 发表于 2011-09-16 17:40

ding

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简单的Ruby 类