Python uses the RE module to extract the contents of parentheses within a string

This article mainly introduces Python using the RE module to extract the contents of the string in parentheses, in conjunction with the instance of the form of the analysis of Python using the RE module for the parentheses content of the regular matching operation, and simple explanation of the correlation modifier and the use of regular statements, the need for friends can refer to the next

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Directly on the code bar:

#-*-Coding:utf-8-*-#! Python2import restring = ' Abe (AC) AD) ' P1 = Re.compile (R ' [(] (. *?) [)] ', Re. S) #最小匹配p2 = Re.compile (R ' [(] (. *) [)] ', Re. S)  #贪婪匹配print (Re.findall (P1, String)) print (Re.findall (P2, String))

Output:

[' AC '] [' AC) ad ']

Explain:

1. The regular matching string was added with R to make the special symbol inside not write back slash.

2.[] has the function of going to special symbols, that is to say [(] (just plain parentheses

3. The regular matching string () is to extract the contents of the entire regular string in accordance with the parentheses.

4: is to represent any character except for the line break. * Colin Closures, appearing 0 or unlimited times.

5. Add it? is the smallest match, not a greedy match.

6. Re. S is to let. Represents any character except the line break.