JSTL为条件及循环结构提供了标记。

JSTL provides tags for conditional and looping constructs.

youdao

在此标记中，我循环遍历了各个标记，并将它们导出为HTML中的行。

Within that tag, I iterate around the tags and export them as rows within the HTML.

youdao

循环进行时，每条记录都被封装到记录自己的目录条目标记中；循环完成后，按钮的设置就开始了。

As the loop progresses, each record is wrapped in its own directory entry tags; after the loop is complete, the setup for the buttons begins.

youdao

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。

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