They want to be sure that he is not dealing off the bottom of the stack of cards.

VOA: special.2009.11.22

It gets popped off the stack as one says and so you know what the values actually as we've hinted at with our brief discussions of forensics they're actually still there.

它从堆中释放了,那些值是什么，就像我们讨论的辩论练习,所暗示的,我们还在那里。

哈佛公开课 - 计算机科学课程节选

But as soon as the most recently called function finishes executing, you have to take that tray off the stack in order to get at the previous function's memory, and once he's done executing, you have to take that one off and then what's left well then main.

但是，一旦新的调用函数结束了执行,你必须从堆中把托盘拿掉,用来获得先前函数的内存，一旦他完成执行，你必须把那一块拿下来,然后剩下的是main函数。

哈佛公开课 - 计算机科学课程节选