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liberalisman committed Jul 24, 2018
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2 changes: 1 addition & 1 deletion README.md
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- 22.是否了解 `Type Encoding`? - [链接](https://github.com/liberalisman/iOS-InterviewQuestion-collection/blob/master/Runtime/22.第二十二题.md)
- 23.`Objective-C` 如何实现多重继承? - [链接](https://github.com/liberalisman/iOS-InterviewQuestion-collection/blob/master/Runtime/23.第二十三题.md)
- 24.`Category` 可不可以添加实例对象?为什么? - [链接](https://github.com/liberalisman/iOS-InterviewQuestion-collection/blob/master/Runtime/24.第二十四题.md)
- 25.`Obj-c`对象、类的本质是通过什么数据结构实现的?
- 25.`Obj-c`对象、类的本质是通过什么数据结构实现的? - [链接](https://github.com/liberalisman/iOS-InterviewQuestion-collection/blob/master/Runtime/25.第二十五题.md)


## Runloop
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5 changes: 5 additions & 0 deletions Runtime/25.第二十五题.md
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## 25.`Obj-c`对象、类的本质是通过什么数据结构实现的?

结构体。

譬如一个最常见的 `Nsobject` 对象。将其编译为 `C++` 代码后,实际上就是一个 `Nsobject_Impl` 结构体。

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