它构建了一行字符串，该字符串包含从root到当前行的所有元素。

It builds a string containing all elements from the root to the current row.

youdao

出于演示的目的，下面的清单只显示了对（多）行字符串的处理，而省略了错误处理。

The listing shows only the handling for (multi-)linestrings and also omits the error handling for illustration purposes.

youdao

尤其是在最后一个例子中，如果一些文件名已经包含新行字符串，那么将新行字符串转换成null字符串将导致错误。

In particular, the final example of translating new line characters to nulls would not work if some file names already contained new line characters.

youdao

So, I'm getting a string and so what really am I doing in this line of code?

那么，我得到一个字符串,这行代码实际上是干什么的呢？

哈佛公开课 - 计算机科学课程节选

So the very last two lines of code I'm saying this, s2 the original string is s1, the copy of the string is s2, but if I haven't lost you, what are we really going to see when we print this?

最后两行代码是这样的，原字符串是s1，那个字符串的拷贝是，但是如果我没有忘记，当我们打印的时候,我们将看到什么？

哈佛公开课 - 计算机科学课程节选