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OK. And I'm going to look to see, is a particular element inside of that list, and again, I'll remind you, that's just giving me the integers from zero up to 9999 something or other.
一个又大又长的列表吧，好的,我打算查找列表中的一个特定元素，我会告诉你，我用的是0到大概是,9999左右的整数。
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swap I'm going to keep track of a little variable called swap, it's initially true, and as long as it's true, I'm going to keep going, but inside of the loop I'm going to set it to false, and only if I do a swap will I set it to true.
我打算跟踪一个小的变量称为,初始值为真，只要它是真的,算法就会继续，但是在循环里,我打算把他设为假,除非交换发生，就把它设为真。
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But I'm going to encourage you more than anything to look inside yourselves.
但最主要的，我会鼓励你们去看自己的内心。
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If I'm iterating from I on the outside, I on the inside, I'm going to start changing the value and I might very well induce an infinite loop but J is okay.
如果我在外面从I开始迭代，或从里面开始迭代，我将开始改变它的值,我可能引起一个无限循环，但是用J是可以的。
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They're inside that loop-I've got the wrong glasses so I'm going to have to squint- and we've got one test which is a comparison we've got another test which is a multiplication-- sorry, not a test, we've got - another step which is a multiplication- and another step that is a subtraction.
他们在循环里面呢,我带错眼镜了所以不得不斜视-,然后我们这里有一个比较的测试,还有一个乘法的测试,-对不起，不是测试,是另外一个乘法的步骤-,还有一个减法的步骤。
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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。
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So what's going to happen here? If I'm inside this FOR, OK, and I'm running around, if I ever hit a place where this test is true, I'm going to execute that return, return that return returns from the entire procedure. OK? So the return comes back from the procedure.
那么这里发生了什么呢？,如果我是在这个for循环里面，我正在运行，如果我运行到test的值为真的地方，我就会执行,这个return将会返回整个程序的值,明白了吗？所以它将会从整个程序中返回值。
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