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标题: 关于实例对象的工作方法？ [打印本页]

作者: 冷峻逸 时间: 2015-10-23 18:39
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作者: taroxd 时间: 2015-10-23 19:16
Could you describe your problem in English and ruby? I cannot understand your Chinese.

作者: 冷峻逸 时间: 2015-10-23 19:27
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作者: 枫の叶 时间: 2015-10-23 19:39
直接哈希啊，可以随便储存，随便赋值的啊！

作者: taroxd 时间: 2015-10-23 19:44
本帖最后由 taroxd 于 2015-10-23 19:45 编辑

冷峻逸发表于 2015-10-23 19:27
about how 实例对象 works
long long ago，I think ruby makes a variable in the ram.
but now, i think ...

Take ```b = A.new``` as an example.

A.new returns the *pointer* of a C *struct* that represented the instance. The struct includes the class of the instance, so that when we call ```A.new.a```, Ruby is able to find the method in A, the class of ```A.new```.

When we assign A.new to variable ```b```, Ruby inserts the reference to a table in the *binding*. The table is just like a hash, and what Ruby has done is like ```table["b"] = the pointer of A.new```. As we call ```b.a``` later, Ruby finds the pointer referenced by ```b```, gets the C struct that represents it, and thus knows all information about the object, such as its class and instance variables.

作者: 冷峻逸 时间: 2015-10-23 19:56
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