Like any software reading a file, the parser is built around a reading loop: a loop that progresses through the file.

和读取文件的任何软件一样，解析器也是围绕着读循环(读入文件的循环)创建的。

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An alternative approach to reading lines is to loop over the file object. This is memory efficient, fast, and leads to simpler code.

一种替代的方法是通过遍历文件对象来读取文件行。这是一种内存高效、快速，并且代码简介的方式。

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