Thing I've got a little procedure that could do that, but you know the simplest thing I could do is to say well, gee, wait a minute, why don't I just check to see if these are the same thing?
这两个点是同一个点么?,我已经写了一小块代码,可以提供这个功能,但是你知道的我可以做的,最简单的事情就是说好,嗯?,等等,我为什么不直接去看看,这两个东西相等不相等呢?
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。
So this code is identical functionally nonswitch c to the last implementation we saw, nonswitch.c, but I'm just ever-more emphatically saying, "In case 1," that is when n equals 1 -- or when case 2 applies -- when n equals 2 or when n equals 3 do what?
所以这些代码到最后的实现上,功能是,完全相同的,但是我想要再次强调一下,“在case,1“,那是当n等于1时1,或者当case,2适用-,当n等于2或者当n等于3,它将做什么?
And this adds, now, a lot of power to the kinds of code I can write.
这也大大增加了,我能写的代码的功能范围。
All right. If you flip to the second side of your handout, you'll see that I have a piece of code there, that does this-- let me, ah, I didn't want to do that, let me back up slightly- this is the algorithm called search.
你可以看到实现这个功能的代码,让我,额,我不想这么做,让我们回来一点,这就是命名为search的算法-,我们来看看这个算法吧。
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