Python模块正则表达式-阿里云

Python常用模块与正则表达式常用模块与正则表达式 1、常用模块 2、正则表达式一、常用模块当我们在程序开发时代码变的庞大时，使我们对代码的维护越来越困难。我们把庞大的代码分成几个文件，这样一个文件中的代码就相对来说少点维护起来也容易点，在python中一个.py文件就是一个模块（Module）。模块分为三个模块：自...

python模块之re正则表达式一、简单介绍正则表达式是一种小型的、高度专业化的编程语言，并不是python中特有的，是许多编程语言中基础而又重要的一部分。在python中，主要通过re模块来实现。正则表达式模式被编译成一系列的字节码，然后由用c编写的匹配引擎执行。那么正则表达式通常有哪些使用场景呢？比如为想要匹配的相应字符...

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