"I've always been a devotee of slapstick, and it sort of emphasizes sometimes jokes and you know I think everybody really deep inside would sometime or another would like to throw a pie or get hit with a pie."
VOA: special.2010.10.17
Because if it's irreversible, it's very likely that I don't know what the pressure inside the system is doing while this is happening.
因为对不可逆过程,系统内部的压强,没有明确的定义,气体不处于平衡态。
OK. So if I look at this code, first of all I'm calling search, it just has one call, so looks like search is constant, except I don't know what happens inside of b search. So I've got to look at b search.
首先调用一下搜索,就一步调用,看起来搜索是固定的,除非我不知道二分搜索的原理,那我们来看看二分搜索吧,所以让我们看看,第一行打印出来的内容。
Second thing we've got to worry about is, what's a basic step? All right, if I bury a whole lot of computation inside of something, I can say, wow, this program, you know, runs in one step. Unfortunately, that one step calls the Oracle at Delphi and gets an answer back. Maybe not quite what you want.
我们需要担心的第二件事情就是,什么该作为一个基本的步骤呢?,如果我把一大堆的计算过程放到里面,我可以说,噢,这个程序你知道的,一步就完成了,不幸的是,这一步可能要靠预言家才能得到答案,这可能跟你想要的结果不太相同吧。
Computing square root. I'm going to capture it in a piece of code, I'm going to be able to refer to it by a name, and I'm going to suppress the details, meaning inside of that computation, you don't need to know what it does. You just need to know, if I give it the right kind of input, it'll give me back an input that satisfies the contract that I set up.
比如计算平方根,我会用一段代码来说明,我将给它命名,并且忽略细节,意思就是在这一段计算过程中,你不用知道它做了什么,你只需知道,如果我进行了正确的输入,它将会给我符合条件的输出。
But I don't have to know, inside of Barnyard, what the values are used inside of solve.
但是我不用知道,在Barnyard内部。
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