Listing 2. Proper handling of the read API function return value.

清单2 .适当处理read api函数的返回值。

youdao

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

And then the only other difference is obviously, it's a function I need to return a value.

然后还剩下一点明显的区别，对于方法我要有返回值。

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