-
I am coming here it is like a dream, and I am imagining something like a historical path, like the path the merchants and the people from the Middle East took down here bringing their music and their culture, and their swords of course, to come and bring their culture to this land."
VOA: standard.2010.02.25
-
a I'm not, so come down here check palindrome that the two end points a and a are the same and call this again also.
判断两端都是,然后再次调用,注意发生了什么。
-
so I'm able to come down here and go for a skate.
所以我可以到这里滑冰。
-
OK, once it gets to the end of that, what's it going to do? It's going to come down here and, oh. What's that doing? Well I cheated when I started. I said, somebody's giving me a perfect square, I'm looking for the square root of it. But suppose 15 I gave this thing 15, and asked it to run.
好，一旦到了循环的最后，程序会去做什么？程序会跳到这里来,噢，这是干什么的？好吧,当我开始的时候我有点小作弊的意思,我说过，我得到了一个完美的平方数,我要求这个数的平方根,但是假设下我得到的数是。
-
In principle, we could play this with the whole class, but let's single out a particular row of the class so I'm going to come down here and I guess eventually, well I'll grab it in a minute.
理论上,我们可以全班一起做这个博弈,但我要选出特定的一行,我先走下来,我觉得,我很快就能挑到人
-
I'm come down here on a train from Bedford.
我从贝德福德坐火车来的。
-
Objection number one - and here I'll come down to - I wanna talk to team libertarian over here.
第一条反对，我先到下面去-,到这边来和自由主义队员对话。
-
You can come in and sit down if you want; there's some space down here.
你想听的话进来找地儿坐下;,这里仍有位子。
-
And I used to live here, so I now come down to see some friends and
我以前住在伦敦，所以现在我来拜访朋友，
-
I actually turned down Yale and Harvard to come here. So come to Princeton!
事实上，我拒绝了耶鲁和哈佛的录取通知，选择了普林斯顿大学。所以大家都来普林斯顿吧！
-
All right, we're-- well actually, I should say that better, we first check to see, is x 0 greater than or equal to zero, if it's not, then we come down here and we print something out, otherwise we run through a little loop to get the answer, and then we check it and we spit something out.
然后我们运行一个小循环,好了，我们现在来看看,如果x≥0或者x＜,我们看这儿,我们会输出一些内容,或者我们运行一个小循环来获取答案,然后我们检验一下，然后得到结果。
-
But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.
做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。
-
But all of the TAs, many of whom are sitting down in the front row over here, are here to help, so come and ask.
不过所有坐在前排的,助教们都是来帮忙的，所以请尽情问问题。
应用推荐