We had out of Norway, a program where a student developed a new type of ski sock that had a special padding in it, and was actually able to get a patent on that and has taken it to market and been very successful.

VOA: standard.2009.12.04

So, in fact we may not find a sock at all and yet we don't seem to handle that at all unless if we don't find any socks, what do we do?

实际上我们可能找不到袜子,并且不用处理那些事情,前提是我们没有找到任何袜子，我们做什么呢？

哈佛公开课 - 计算机科学课程节选

If you find a matching sock which you didn't so then else.

如果你找到相匹配的袜子就执行接下来的代码,否则就执行其他。

哈佛公开课 - 计算机科学课程节选

We saw this with the sock algorithm a moment ago.

我们前面看到了袜子算法。

哈佛公开课 - 计算机科学课程节选

So the fact that line 9 did not match, if you find a matching sock which we didn't, that means we immediately jump to the else which is line 13 and so Philip now has to do what?

事实上，第九行我们没法匹配，如果你没找到匹配的袜子，这意味着我们立即跳转到第13行,所以现在Philip做什么？

哈佛公开课 - 计算机科学课程节选