需求匹配www.sss.com/456.jpg
import re
str1=‘aaaabbbbbcccc src="http://www.sssss.com/123.html" src="http://www.sss.com/456.jpg" pic_extaaaaaaaaaaa‘
restr=r‘.*src=\"(.*?.jpg)‘
ok=re.findall(restr,str1)
>>> ok
[‘
http://www.sss.com/456.jpg‘]
python正则分组匹配小例,布布扣,bubuko.com
python正则分组匹配小例
原文：http://1161192890.blog.51cto.com/2041190/1373503
