# self

*   `self`在当前的`initialize`中直指当前的实例对象

    ```ruby
    class Foo
    def initialize(x)
      self.c x
    end

    def c(x)
      puts "c的参数是#{x}"
    end
    end
    f = Foo.new(1)
    ```
*   带给我的感觉 `self`在很大程度上类似.都是指定当前的实例.给我的感觉就是

    ```ruby
    self == @
    !self.eql?(@)
    ```

    类似于`coffee js`的

    ```javascript
    this && @
    ```

    例如:

    \`\`\`ruby class Foo attr\_accessor :name def initialize(x) @name = "wo" end end

class Foo attr\_accessor :name def initialize(x) self.name = "wo" end end

f = Foo.new(3) puts f.name

````
再比如
```ruby
class A
  @num = 8
  def show
    puts @num
  end
end

class B < A
  def initialize
    @num = 3
  end
end

b = B.new
b.show
````
