14、Python 文件处理与递归算法实践

Python 文件处理与递归算法实践

1. 文件处理练习

1.1 一致行长度格式化

在终端窗口中显示文本时，由于窗口宽度不同，文本行可能过长而换行，导致阅读困难，或者过短而无法充分利用空间。为了解决这个问题，需要编写一个程序，将文件内容进行格式化，使每行尽可能填满。

示例文件内容如下：

Alice was
beginning to get very tired of sitting by her
sister
on the bank, and of having nothing to do: once
or twice she had peeped into the book her sister
was reading, but it had
no
pictures or conversations in it,"and what is
the use of a book," thought Alice, "without
pictures or conversations?"

格式化后，行长度为 50 字符的输出如下：

Alice was beginning to get very tired of sitting
by her sister on the bank, and of having nothing
to do: once or twice she had peeped into the book
her sister was reading, bu