We want to write a piece of code that helps these guys out, so I'm going to show you an example.

通过写一段代码,来解决一个这样的问题，接下来让我们来看个例子。

麻省理工公开课 - 计算机科学及编程导论课程节选

I want to show you how easy it is to change the code. But, notice, once I've added this I actually have a problem. This is now an under-constrained problem. I have more unknowns than I have equations.

我加上这个条件后,我马上面临一个问题了,这就是现在是一个非约束性问题了,我的未知数比方程数多,你从代数中可以知道。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well, as we'll eventually show you the source code, the code we wrote for GetInt itself.

好的，因为最终我们将给你们看源代码，那个我为GetInt而写的代码。

哈佛公开课 - 计算机科学课程节选

OK, so how can I code this up? Well, you might think, let's just jump in and write some code, I don't want to quite do that though, because I want to show you another tool that's valuable for thinking about how to structure the code, and that is a something called a flow chart. Now.

好，那么我怎么把这个以代码实现呢，你可能会想，让我们进去直接写代码把,但是我不想这么做，因为我想教给大家另外一项很有价值的,用来组织代码的工具，叫做流程图,现在，像Guttag教授,和我这么大岁数的人。

麻省理工公开课 - 计算机科学及编程导论课程节选