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Title: 正则表达式 | 莫烦Python

Open Graph Title: 正则表达式 | 莫烦Python

X Title: 正则表达式 | 莫烦Python

Description: 正则表达式 (Regular Expression) 又称 RegEx, 是用来匹配字符的一种工具. 在一大串字符中寻找你需要的内容. 它常被用在很多方面, 比如网页爬虫, 文稿整理, 数据筛选等等. 最简单的一个例子, 比如我需要爬取网页中每一页的标题. 而网页中的标题常常是这种形式.

Open Graph Description: 正则表达式 (Regular Expression) 又称 RegEx, 是用来匹配字符的一种工具. 在一大串字符中寻找你需要的内容. 它常被用在很多方面, 比如网页爬虫, 文稿整理, 数据筛选等等. 最简单的一个例子, 比如我需要爬取网页中每一页的标题. 而网页中的标题常常是这种形式.

X Description: 正则表达式 (Regular Expression) 又称 RegEx, 是用来匹配字符的一种工具. 在一大串字符中寻找你需要的内容. 它常被用在很多方面, 比如网页爬虫, 文稿整理, 数据筛选等等. 最简单的一个例子, 比如我需要爬取网页中每一页的标题. 而网页中的标题常常是这种形式.

Keywords:

莫烦
沫凡
周沫凡
周莫烦
周莫凡
python
tutorial
machine learning
正则表达式

Opengraph URL: http://mofanpy.com/tutorials/python-basic/basic/regular-expression

X: http://mofanpy.com/tutorials/python-basic/basic/regular-expression

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title	正则表达式 \| 莫烦Python
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author	Mofan,Morvan,莫烦,周沫凡,周莫烦
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推荐学习顺序	https://mofanpy.com/learning-steps/
Python基础 ▾	https://mofanpy.com/tutorials/python-basic/basic/regular-expression
交互式学Python	https://mofanpy.com/tutorials/python-basic/interactive-python/
多进程 multiprocessing	https://mofanpy.com/tutorials/python-basic/multiprocessing/
多线程 threading	https://mofanpy.com/tutorials/python-basic/threading/
窗口视窗 Tkinter	https://mofanpy.com/tutorials/python-basic/tkinter/
机器学习 ▾	https://mofanpy.com/tutorials/python-basic/basic/regular-expression
有趣的机器学习	https://mofanpy.com/tutorials/machine-learning/ML-intro/
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机器学习实战	https://mofanpy.com/tutorials/machine-learning/ML-practice/
数据处理 ▾	https://mofanpy.com/tutorials/python-basic/basic/regular-expression
Numpy 数据怪兽	https://mofanpy.com/tutorials/data-manipulation/numpy/
Pandas 数据伙伴	https://mofanpy.com/tutorials/data-manipulation/pandas/
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网页爬虫	https://mofanpy.com/tutorials/data-manipulation/scraping/
提效工具 ▾	https://mofanpy.com/tutorials/python-basic/basic/regular-expression
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【浏览器跑Python】交互式Python学习	https://mofanpy.com/tutorials/python-basic/interactive-python/
« set 找不同	https://mofanpy.com/tutorials/python-basic/basic/set
本节全部代码	https://github.com/MorvanZhou/tutorials/blob/master/basic/36_RegEx.py
代码的 notebook 形式	https://github.com/MorvanZhou/tutorials/blob/master/basic/36_regex.ipynb
网页爬虫教程	https://mofanpy.com/tutorials/data-manipulation/scraping/
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#简单的匹配
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#灵活匹配
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#按类型匹配
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#重复匹配
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#分组
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#findall
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#replace
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#split
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#compile
¶	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#小抄
这里	https://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html
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if 判断	https://mofanpy.com/tutorials/python-basic/basic/if
if else 判断	https://mofanpy.com/tutorials/python-basic/basic/if-else
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multiprocessing 什么是多进程	https://mofanpy.com/tutorials/python-basic/basic/multiprocessing
什么是 tkinter 窗口	https://mofanpy.com/tutorials/python-basic/basic/tkinter
pickle 保存数据	https://mofanpy.com/tutorials/python-basic/basic/pickle
set 找不同	https://mofanpy.com/tutorials/python-basic/basic/set
正则表达式	https://mofanpy.com/tutorials/python-basic/basic/regular-expression
简单的匹配	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#简单的匹配
灵活匹配	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#灵活匹配
按类型匹配	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#按类型匹配
重复匹配	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#重复匹配
分组	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#分组
findall	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#findall
replace	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#replace
split	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#split
compile	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#compile
小抄	https://mofanpy.com/tutorials/python-basic/basic/regular-expression#小抄
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