What they also did around the year one thousand was to identify-- to label--these particular spots--spaces and lines.
在公元一千年左右,他们还制定了规范,来标记这每一个点,间和线
Well, the first line of code, I'll fix the purple next time around so it's more legible.
第一行代码,我用紫色标记,这样增加了可读性。
That is this rewritten in a much more compact notation because you have the value of this.
这就使你在重写的时候能有一个更紧凑的标记,因为你已经有了这个值的概念。
Suppose that there were some sort of genetic marker and, although we didn't have a tattoo that you would just have to look at, -- but you could have genetic counseling-- have your DNA examined and you could tell, if you had the DNA testing, how much time you had left.
假设有某种基因标记,虽然我们没有,让你不得不去看的在身上的标记了,但你可能会去做基因咨询-,检查你的DNA,如果你做了DNA化验的话,你就能知道自己还剩多少时间。
Now, I mentioned this other sentinel value a while back.
现在,我刚才提到了这个标记值。
Well, this question mark becomes an O, this question mark becomes an O, and then the loop terminates 0 1 2 because it's iterating from zero to N so that's zero, 1, 2 and the length of the string is 3 so the loop terminates, but I remember that I needed to have this special sentinel value so I'm just going to put it there manually.
嗯,这个问号变成了,这个问号变成了0,然后循环结束了,以为迭代从0到N,那就是,字符串的长度是3,然后循环就结束了,但是我记得我需要这个特殊的标记值,所以需要手动的加上它。
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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