Well, there's a chunk of memory called the heap that you can grab as much memory as you want so long as it exists for your program.

好的，这里有一块叫做堆的内存,这样你就可以获得你想要那么多的内存,因为它为你的程序而存在。

哈佛公开课 - 计算机科学课程节选

So A gets 1, B gets 2, now the swap function itself starts executing line by line; so I declare a chunk of memory called temp.

所以A等于1，B等于2，现在swap函数自己开始,一行一行地执行，所以我声明了,叫做temp的一块内存。

哈佛公开课 - 计算机科学课程节选