正则表达式问题

MagicY

python3.52

照着视频里打了re.search(r'(([01]{0,1}\d{0,1}\d|2[0-4]\d|25[0-5]\.){3}([01]{0,1}\d{0,1}\d|2[0-4]\d|25[0-5])','192.168.1.1')
Traceback (most recent call last):
  File "<pyshell#24>", line 1, in <module>
    re.search(r'(([01]{0,1}\d{0,1}\d|2[0-4]\d|25[0-5]\.){3}([01]{0,1}\d{0,1}\d|2[0-4]\d|25[0-5])','192.168.1.1')
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\re.py", line 173, in search
    return _compile(pattern, flags).search(string)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\re.py", line 293, in _compile
    p = sre_compile.compile(pattern, flags)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\sre_compile.py", line 536, in compile
    p = sre_parse.parse(p, flags)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\sre_parse.py", line 829, in parse
    p = _parse_sub(source, pattern, 0)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\sre_parse.py", line 437, in _parse_sub
    itemsappend(_parse(source, state))
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35-32\lib\sre_parse.py", line 781, in _parse
    source.tell() - start)
sre_constants.error: missing ), unterminated subpattern at position 0

SixPy

少打了个 )

http://bbs.fishc.com/forum.php?mod=redirect&goto=findpost&ptid=72794&pid=2636572