返回值为零，说明是一次成功的解析，否则返回的是非零值。

The return value is zero for a successful parse, and non-zero otherwise.

youdao

清单10说明处理函数返回值的代码应该是什么样的。

Listing 10 shows what should the code to handle this situation should look like.

youdao

在C语言和大部分语言中，你必须说明函数的返回值。

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

youdao

I don't have to go read what it printed out in the screen. This has returned a value that I can use. Because I could do a test to say, is this a return value? If it's not, I'll do something else with it. So the binding is still there, it simply doesn't print it out.

我不想读到屏幕中打印出来的这行字,程序返回过一个我能够使用的值,因为我可以做个小测试，来说明这是否是返回的值，如果不是，我可以做一些其它的事,而这个绑定依然在这儿，没有打印任何东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

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。

哈佛公开课 - 计算机科学课程节选

> 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。

哈佛公开课 - 计算机科学课程节选