OK, so let me show you a nice example of why we might want to use vectors to study parametric curves because, after all, a lot of what's here you can just do in coordinates.

我来举个例子，解释为什么我们用向量来学习参数曲线，毕竟我们学了这么多的都只能在坐标上完成。

youdao

OK, you've actually seen exceptions a lot, you just didn't know that's what they were, because exceptions show up everywhere in Python. Let me give you a couple of examples.

好的，你们实际以及看过很多异常了，你就是不知道这些是什么，因为异常在Python中随处可见，我给你举些例子。

youdao

B: Ok. Let me show you around.

好了，让我带您四处转转吧。

youdao

OK. In particular, let's go over to here, and let me show you a second example.

一定是个坏办法，它经常是解决问题的。

麻省理工公开课 - 计算机科学及编程导论课程节选

OK. All right, let me show you one other tool that I want to use. Which is, I've written that piece of code, I ought to check it. Well, I could just run it, but another useful thing to do is, I'm, especially as I want to debug these things, is to simulate that code.

好，那么，让我给大家讲下,我想用的另外一个工具吧,也就是，我已经写好了这一块代码，我应该去检查检查,那么我可以去运行它,但是特别是当我想要调试代码的时候。

麻省理工公开课 - 计算机科学及编程导论课程节选