Typical gains for a pure Python program are between two and four times, but lxml does most of its work in C, so the difference is unusually small.

一个纯Python程序的典型性能收益是普通程序的2 至4倍，但是lxml 使用C 语言完成了大部分工作，因此它们之间的差别非常小。

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Typical gains for a pure Python program are between two and four times, but lxml does most of its work in C, so the difference is unusually small.

一个纯Python程序的典型性能收益是普通程序的2 至4倍，但是lxml 使用C 语言完成了大部分工作，因此它们之间的差别非常小。

youdao