He said to gain time: "What is it you see?"
他为了赢得时间,说:,“你在看什么?“
All right. So let me start again by reminding you what it is that was done last time.
好的,我们开始上课,先回顾下上节课的内容
You want to write the specs so that everybody does in fact know what this piece of code is doing, and you're writing it each time around.
但是你得养成良好的习惯和编程风格,你得撰写规范说明从而保证,每个人都知道这段代码是干什么的。
I'll even tell you what it is ahead of time.
我甚至可以让你预先看看是哪些话。
What that means is, if you know the velocity of the given time and you know the initial velocity, you know what time it is.
这个方程的意义是,如果你知道某个给定时刻的速度,并且知道初速度,你就能知道运动的时间
I just doubled the indentation each time so you can see it. So each successive call, notice what's happening. The argument is getting reduced. And we're going another level in. When we get down to this point, we're calling it with just a string of length one.
因此每次成功调用注意它的过程,我们的命题不断简化,而且我们不断深入嵌套,当我们走到这一步的时候,我们就是在调用它处理,仅有一个元素的字符串了。
A clock tells you what time it is, but you can also say what time it is by seeing how fast the particle is moving because you know it started with some speed.
时钟能告诉你现在的时间,但你也可以通过测量质点速度,来判断当前的时间,因为你知道它的初速度
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