python regular expression basic

来源：互联网发布：coc狂暴升级数据编辑：程序博客网时间：2024/05/16 02:06

#!/usr/bin/python3
# regex.py by Bill Weinman [http://bw.org/]
# This is an exercise file from Python 3 Essential Training on lynda.com
# Copyright 2010 The BearHeart Gorup, LLC

import re

def main():
fh = open('raven.txt')
for line in fh:
if re.search('(Len|Neverm)ore', line):
print(line, end='')

if __name__ == "__main__": main()

#!/usr/bin/python3
# regex.py by Bill Weinman [http://bw.org/]
# This is an exercise file from Python 3 Essential Training on lynda.com
# Copyright 2010 The BearHeart Gorup, LLC

import re

def main():
fh = open('raven.txt')
for line in fh:
print(re.sub('(Len|Neverm)ore','###', line),end=' ')

if __name__ == "__main__": main()

------预编译

#!/usr/bin/python3
# regex.py by Bill Weinman [http://bw.org/]
# This is an exercise file from Python 3 Essential Training on lynda.com
# Copyright 2010 The BearHeart Gorup, LLC

import re

def main():
fh = open('raven.txt')
pattern=re.compile('(Len|Neverm)ore')
for line in fh:
if re.search(pattern, line):
print(pattern.sub('###',line), end='')

if __name__ == "__main__": main()

0 0