My instinct led me to return an int , but it adds a lot of complexity to the code at the bottom and doesn't buy my anything.

我的本能指引我返回int，但是它给底部的代码增加了很多复杂度而没有给我带来任何好处。

youdao

So int n just gives me four bytes for an int, but it doesn't put anything there yet.

所以int，n只是给我们分配了4个字节，但是它没有放任何东西在那里。

哈佛公开课 - 计算机科学课程节选

- So now if Christiana doesn't actually -- if either programmer or who's programming these little puzzle pieces, don't actually do anything with this return value, and I call, get int, she wants to hand this piece of paper -- to me, but if I don't actually assign -- no, no, I just messed up the demo.

现在如果Christiana没有-,如果程序员或谁在编写这段代码,不要对这个返回值做任何事情，我调用GetInt，她把这张纸给我,但是如果我没有赋值-,不，不，我刚才把这个演示搞乱了。

哈佛公开课 - 计算机科学课程节选

Instead I'm going to be expecting the address of some int and the address of another int and thanks to this address I can literally find this address in RAM, do anything I want there, -- return and what I've just done is actually changed or mutate the values of those original variables.

我们所期望的是int型地址,和另外一个int型地址,幸亏这个地址，我可以找在RAM中找到它的地址，然后做我想做的事情，返回我处理后的东西,我可能改变了这些源变量。

哈佛公开课 - 计算机科学课程节选