python使用正则表达式实现搜索单词的示例代码

import re

pattern = 'this'

text = 'http://blog.csdn.net/caimouse is great, this is great way!'

match = re.search(pattern, text)

s = match.start()

e = match.end()

print('Found "{}"\nin "{}"\nfrom {} to {} ("{}")'.format(

 match.re.pattern, match.string, s, e, text[s:e]))