Communitymcdoh提出了一个问题：Extending the defaults of a Model superclass in Backbone.js，或许与您遇到的问题类似。
回答者ScottyJCorcuera给出了该问题的处理方式：
The problem is that Inventory.prototype.defaults and Extended.prototype.defaults has the same reference, because you have not override the reference.
So you can do this in 2 ways, maybe more but i only found this 2:
Edit: The first example is incorrect (see comments); please refer to the second.
--- ----------------- - ------------------
--------- -
--------
-
---
---------------------------------------------- ------------------------------
or
--- ----------------- - ------------------
--------- -----------------------------------------
----------
-
---
I think the first looks cleaner.
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