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They might very well be storing the addresses of memory elsewhere, but we just needed them as sort of a cheat sheet, a little address card to know where the original values x and y were.
它们存储在内存的其他地方是可以的,但是我们需要一个备忘单,一个地址卡，来知道,原始的值x和y是什么。
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Well, maybe this ended up at location 7, 8, 7 8 9 9 so what's really in x is the number 7, 8, 9, which is the address in memory, but again, uninteresting.
嗯，可能这个在地址7，8，9结束，那么在x中实际上是数字，那是内存中的地址，但是，那是没有什么用的。
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We need to tell the computer go to the address in x * and put 42 there so is the symbology there & or *?
我们需要告诉计算机，通过x定位到那个地址,然后在那里存储42，这里是用&还是？
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So, now we have said go to the address stored in X, which is who knows, it's over there, put the number 42 there so what I've just drawn is this part of this story here.
那么，现在我们指明定位到存储在x中的地址，那就是把数字42放在那里,我所画的就是这一部分。
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> David: Yes, if you really, if you want to reimplement the solution from last where whereby it was buggy, you can absolutely say take the address of x then go there, thereby undoing all of the work you just did.
>，大卫：是的，如果你的确，如果某个地方有bug，你想要重新,实现那个解决方案，你绝对可以通过x的地址，定位到那里去，然后撤销你刚做的所有工作。
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It is the postal address of x and the postal address of y.
它是x的通讯地址，和y的通讯地址。
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X That's just the special symbol in C that says don't pass X, that is don't pass a copy of X. Rather figure out where x is in memory, where he is in that frame and provide swap the numeric address in RAM of that value so that swap can go do anything it wants at that address.
这在C中是一个特殊的符号，指明不传送，也不是传递X的拷贝，而是指出x在内存中哪个地方,它在那个框架中的哪个地方,提供给swap它的地址值,这样swap就可以使用那个地址中的数据。
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