The second thing is, what do I print out if I actually don't get the right input in?

第二件事是我没得到,正确类型的输入时输出什么？

麻省理工公开课 - 计算机科学及编程导论课程节选

Notice in this program I have not checked whether or not the user actually provided input.

就拿这个程序说事吧，我们根本没有检查,用户到底有没有输入。

哈佛公开课 - 计算机科学课程节选

Because if I don't specify a name for this input, I have no way of actually referring to it in subsequent lines of code.

因为如果我不给这个输入定义一个名字，在随后的代码中,我就没有办法使用它。

哈佛公开课 - 计算机科学课程节选

So we'll talk a bit more about this idea of functions today, but, get int, again, can think of it as a black box, whose purpose in life is to prompt the human for input and pester the human if he or she doesn't actually give it int, but then once it has that, has entered it from the user, it's quote unquote, returns it to you.

所以我们进今天将多讨论点这个函数的概念，但是，GetInt，我们可以把它当做一个黑盒子，它的唯一目的是提示人们来输入,并且如果他或她没有,给它int数，则会纠缠用户，但是一旦它得到了，用户输入的int数，对输入进行引用，返回给你。

哈佛公开课 - 计算机科学课程节选