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Knitting is a way of creating clothing by looping together long thin pieces of material such as cotton or wool.
VOA: special.2009.04.08
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As soon as I detect with what we'll call a condition if I'm touching the edge I have to essentially spin around 180 degrees and then continue looping.
一旦我检测到这种情况,当我碰到边界时,我需要转180°然后继续这一循环过程。
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We'll actually see it's a wonderful way of effectively looping yourself back around, for instance if you're at the end of the alphabet So what about those variables?
如果我们要将某些东西首尾连在一起,在这个圈里循环，你就会看到它的奇妙之处了，譬如,你在字母表末,好，我么继续，这些变量都是些什么？
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The last thing I want to point out to you is, I started out with this list. I haven't added anything to the list, right? I mean I've got a different kind of looping mechanism.
我们从这个列表开始，我没往这个列表上加任何东西对不对？,我的意思是我学会了一种不同种类的,循环机制，我想我得说。
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Now, as obvious a statement as that is in this algorithm, it turns out that is the key to this whole problem being solved correctly without my algorithm looping infinitely.
这是此算法中很明显的一句话，也是正确解决,整个问题的关键,否则此算法就会陷入死循环。
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So what would I want to do? I'd like to somehow walk down each of the digits one at a time and add them up. Ah, that's a looping mechanism, right? I need to have some way of walking through them.
去取这个数的,每个数字然后把他们加起来,啊，这是个循环机制对不对？,我得找到一个遍历它们的方法,一种简单的方法可能。
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How do I figure that out? Well I'm looping down the list, right? I'm walking down the list.
怎么算出来的呢？我在循环遍,历这个列表对吧？那要遍历这个列表。
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It's not a good thing if you're just looping and checking some condition, but never actually changing the state of the world.
这不是一个好事情，如果你只是循环,检查一些条件，但是永远不要改变世界上的国家。
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Figure out how you can make it move a little to the left, a little to the right, up and down and then repeat in some kind of looping structure.
就是找出办法让它向左移动一小步，向右移动一小步，向上一小步，向下一小步,像这样不断重复。
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So hopefully, there's an opportunity for actually looping and, ultimately, than doing things conditionally.
所以我就希望，最终有这样一个循环,而不是我重复做这件工作。
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And those are two things that you'd like to do with every looping construct you write: you'd like to be able to assure yourself that they will always terminate, and then the second thing you'd like to do, is to assure yourself that it does give you back a reasonable answer.
就是现在我有了能去检查程序,是不是做了正确的操作的能力：,这就是你们在写每个循环程序的时候,都要注意的两个事情：,第一件事情是要确保程序可以终结，第二件你要做的事情,就是要确保程序返回了正确的答案。
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Certainly in the cookie love story was there a looping going on.
很明显在饼干人爱情故事里面,就有用到循环。
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And we have looping constructs.
我们还学习了循环结构。
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So the translation here is that whereas last week and in Scratch, the looping structures are yellow and have kind of this brace structure to them.
同理，大家回想一下上个星期,在Scratch软件中，循环结构都用黄色标记出来了,与此类似。
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That is basically saying, given some collection of data, I want to have again a looping mechanism, where now my process is, walk through this, the collection one element at a time. And for that, we have a particular construct, called a FOR loop.
现在我的过程就是,通过一个个访问这个集合中,的元素的方式，来遍历这个集合,为了达到这个目的，我们有一个特定的结构，成为FOR循环。
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