回链指针指向前一个堆栈框架的回链指针。
The back chain pointer points to the back chain pointer of the previous stack frame.
这只是是一个指针指向，另一个指针指向的数据。
It just changes one pointer to point to the same thing as another.
函数指针是指向各自函数的标签的简单指针。
Function Pointers are simply Pointers to the label of the respective function.
函数指针是指向各自函数的标签的简单指针。
Function Pointers are simply Pointers to the label of the respective function.
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