First, it's pointing to the beginning of the list, which initially might be down here at but after a while, might be part way through. And to that, I simply add a halfway point, and then I check.

列表中间的一个部分了，然后我求出列表的中值点,然后看看该点的值是不是等于目标值，如果是的话就完成了，如果不是的话，如果中位值大于我要找的目标值。

麻省理工公开课 - 计算机科学及编程导论课程节选

So when I'm done, I'm going to give the value back out. All right?

当它完成计算后,需要返回个值对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

And so we saw that as well, the last piece we had here is the ability to create variables, which have their own values, and that's done using an assignment statement.

我们也可以看到，这里我们最后的是,创建了一些变量，这些变量都有自己的值，这是运用了赋值声明来完成的。

麻省理工公开课 - 计算机科学及编程导论课程节选

But that little short hand there is doing exactly the same thing. It is adding that value into some digits and putting it back or signing it back into some digits. And I'll walk through that loop and when I'm done I can print out the total thing does. And if I do that, I get out what I would expect.

加上得到的这个数的,但是这个缩写声明其实是进行了同样的操作,它把我们得到的这个数加到一个数上面去,然后用和对这个数进行了重新赋值,在循环中会去遍历字符串，当完成循环后,程序会显示数字的总和，如果我运行，这个程序的话，我会得到我期待的结果。

麻省理工公开课 - 计算机科学及编程导论课程节选

I should use Cartesian or polar to pull out those pieces of it.

或者polar方法来读出这些值,一旦我完成了以上的操作。

麻省理工公开课 - 计算机科学及编程导论课程节选