The stack region is used for subroutine return addresses, as well as to store automatic data.

stack区域用于子程序返回地址，也用于存储自动数据。

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The stack is a last-in-first-out (LIFO) queue that holds subroutine return addresses, items of data, Pointers, and so on.

堆栈是一个后进先出(LIFO)队列，它保存了子例程的返回地址、数据项、指针等等。

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After escaping the '. 'character, the subroutine will return an otherwise unmodified string if there were no asterisks found.

在转义了' . '字符后，如果未找到星号，子程序则会返回一个未修改的字符串。

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