You have to pass it as input to another function, as you'll see as possible in problem's Set One specification, but it's ultimately up to you.

你需要把它传给另一个函数当入参，就像你们将,在习题集1中可能看到的，但它最终取决于你。

哈佛公开课 - 计算机科学课程节选

So one of the things I want you to notice here is that testing and debugging are not the same thing. When we test, we compare an input output pair to a specification.

这里我想大家注意的一件事,就是测试和调试是不同的两件事情,我们测试的时候，我们把输入输出,跟程序的规格说明书对比下。

麻省理工公开课 - 计算机科学及编程导论课程节选