You don't have this particular code on your handout, you do have a code that uses the same concept.

在你们的讲义上没有这种代码，你可以看到相同概念的一个代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'm thinking about a problem, I'm going to show you an example in a second, first thing I'm going to do is say, what is the thing that's going to change every time I run through the same set of code?

我要解决一个问题，我马上会让大家看一个例子，第一件我要做的事情就是,弄明白每次运行同样的指令集时,每次都会改变的东西是什么？

麻省理工公开课 - 计算机科学及编程导论课程节选

I'm going to use my own special program that will color code things for me in class, but the idea is the same; it's a text editor.

我将用我自己专门的程序,那个会分类为我标出代码的颜色，但是那个思想是一样的，这是一个文本编辑器。

哈佛公开课 - 计算机科学课程节选

Well, you won't be surprised to hear it's the same solution. So let's look at that code.

好了，听到二者是一样你可别惊讶,让我们看看代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I want to remind you, that block of code is a set of instructions, the same set of instructions that are going to be done each time through the loop.

我想提醒大家,这块代码是一个指令集,一个每次循环都会被执行的相同指令集,会变化的仅仅是变量的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

But I want to stress again, as long as I do the base case right and my inductive or recursive step reduces it to a smaller version of the same problem, the code will in fact converge and give me out an answer.

就开心的去做吧,但是我想再次强调,只要基础事件处理正确而我的递归,或递推步骤能把它简化为更简单的同类问题,那么这段代码就可以收敛。

麻省理工公开课 - 计算机科学及编程导论课程节选

This chunk of code and this chunk of code, they're really doing the same thing.

这一块代码和这一块代码，它们实际上是相同的功能。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now I have the ability to create a loop, that is, to reuse the same pieces of code over and over again as I go around.

现在我们已经学会如何创建循环了，也就是，重复的一遍又一遍的,执行同一片代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

At the end of the day, you can implement the exact same program using a while loop that you can using a for loop, it's just your code is going to look slightly different.

最终，你可以执行这个程序,再使用for循环的地方使用while循环，这只是使你的代码看起来稍微有点不同。

哈佛公开课 - 计算机科学课程节选