Literally, return the control from this function, and take the value of the next expression, and return that as the value of the whole computation.

正如字面意义上说的，从这个函数返回，然后取得下一个表达式的值,并把这个值作为整个计算的结果返回。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's totally legit to cull a function, get back a value, do nothing with it other than compare it to another value.

挑选一个函数是完全合法的，返回一个值，用它来做些事情而不是用它与其它的值比较。

哈佛公开课 - 计算机科学课程节选

PROFESSOR: And so in this case, it's using the same piece, but it's returning that middle value that says they're actually the same.

教授：那么实际在这个例子中，我们用的是同一个函数，它返回了中间的值也就是,0来表明着两个参数。

麻省理工公开课 - 计算机科学及编程导论课程节选

The only thing that you have to put in the function prototype, ; again, is three things; one, the name of the function; the return value; and its arguments.

你唯一要加入到函数原型中的东西，是有三个东西，一，函数的名字;,返回值，和它的参数。

哈佛公开课 - 计算机科学课程节选

So functions and return values.

函数和返回值。

哈佛公开课 - 计算机科学课程节选

And again, a related problem that people run into is side-effects. You call a function and it returns a value, but maybe it, on purpose or on accident, modifies one of the actual parameters.

另外，一个人们常碰到的相关问题,就是副作用，你调用一个函数它返回一个值,但是故意或者无意的,它可能会修改一个实参的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the reason that we now on the second line have the equal sign is because this function GetString has what's called a return value.

我们之所以,在第二行代码GetString前面加上等号,是因为这个函数会带回一个,返回值。

哈佛公开课 - 计算机科学课程节选

You have to with C, as with a lot of programming language, say what you return.

在C语言和大部分语言中,你必须说明函数的返回值。

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> So void, again, is my way of saying swap does not return anything.

>，void，再次强调下，这是一种,说明函数不返回任何值的方式。

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So this function increment takes nothing, returns nothing, and yet it does something.

所以increment函数不带入参，也不返回值，它也没做什么。

哈佛公开课 - 计算机科学课程节选