Then you can write the tree back to disk or pretty-print it.

最后再把树写回磁盘或者以优美的格式打印。

youdao

format-pretty-print -- This formats the output by adding a newline carriage return and indented whitespace to produce a pretty-printed, human-readable form.

格式美化— 这个功能通过添加换行回车符和缩进空格来对输出进行格式化，以生成美化的、可读性良好的格式。

youdao

This preserves all white space, which includes the Spaces that might be added by code-editing applications to "pretty-print" align elements as a visually intuitive nesting.

这样将保留所有空白，包括代码编辑应用程序为了以视觉上直观的嵌套形式“精美输出”对齐元素而添加的空格。

youdao

I print F, I backslash N, just to pretty up the screen, ArgC I then iterate from, I equal zero up to Arg C; so Arg C is the convention.

我键入printf，反斜杠n，来使屏幕变得美观点，然后i开始迭代，从i等于0增加到;,所以ArgC是一个约定。

哈佛公开课 - 计算机科学课程节选

We can put a list in the list again, as we've seen before. So let's put the list containing the string a, and I'll print out so now we see something pretty interesting about a list, that we can mix up all sorts of things in it, and that's OK.

数组放到数组中去，让我们把这个包含,字符串a的数组放进去,然后再显示，我们看到了一些,挺有趣的事情：我们可以把各种,各类的东西混合着放进去，没问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

Carolina Irving's fabrics, such as her pretty dandelion print in pea green, are also divine for kids.

WSJ: Silly Parent, Good Design Is for Kids | Living Well by Rita Konig

Of course, if you're an experienced 3D modeler, you've got a lot more leeway -- in fact, you can, as promised, print pretty much anything your heart desires (within the material and spatial limits, naturally).

ENGADGET: MakerBot Replicator impressions: the dawning of 3D printers in every home?

Which is to say, it's pretty plain-Jane, with a matte, scratch- and finger-print resistant gray back.

ENGADGET: Acer shows off next-gen Iconia Tab A210 and A110 at Computex, we go hands-on (video)