I've written a little for loop, which is going to iterate over all of the elements in the list.

让我们先看看这儿的代码，我已经写了一个循环语句,用来迭代处理数组中所有的元素。

麻省理工公开课 - 计算机科学及编程导论课程节选

Condition," this thing in the middle between the semicolons, is going to be checked every iteration of the loop.

条件，“这个在两个分号的中间，它将迭代地检查这个循环的条件。

哈佛公开课 - 计算机科学课程节选

Which is iteration. Or loops.

也就是迭代，或者循环。

麻省理工公开课 - 计算机科学及编程导论课程节选

They're running through a loop. It's a common way of thinking about problems.

有继承意义的迭代程序了,它们是以循环的模式来运行的。

麻省理工公开课 - 计算机科学及编程导论课程节选

We saw some quadratic algorithms, typically those are things with multiple nested loops, or iterative or recursive calls, where you're doing, say, a linear amount of time but you're doing it a linear number of times and so it becomes quadratic, and you'll see other polynomial kinds of algorithms.

我们看过一些平方算法，他们一般进行了多次嵌套循环,或者递归迭代调用，对一个线性操作调用线性次,这样就变成平方次了,以后你们能看到,一些多项式算法。

麻省理工公开课 - 计算机科学及编程导论课程节选

So unlike Scratch where you pretty much had to say "repeat" ten times or whatever, or forever where it's just "forever" with for loops, -- can you actually specify a finite number of iterations -- and as I learned 15 years ago, finite is important.

所以不像Scratch，你大致上需要用,“repeat“10次或更多，或者需要不断地使用当它,是死循环时，你们能够指定出一个有限的迭代次数-,像我15年前学的，有穷的是重要的。

哈佛公开课 - 计算机科学课程节选

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。

哈佛公开课 - 计算机科学课程节选