Python正则匹配之有名分组
参考:http://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html
# re.match import re m = re.match(r\'(\w+) (?P<sign>.*)\', \'hello standby!\') print(type(m)) # <class \'_sre.SRE_Match\'> print(m) # <_sre.SRE_Match object; span=(0, 14), match=\'hello standby!\'> print(m.groupdict()) # {\'sign\': \'standby!\'} # re.search import re ret = re.search("(?P<arg_name>\d+)","hello456liu999") print(ret) # <_sre.SRE_Match object; span=(5, 8), match=\'456\'> li = ret.group("arg_name") print(type(li)) # <class \'str\'> print(li) # 456
# re.match匹配ip地址 import re # 将正则表达式编译成Pattern对象 pattern = re.compile(r\'(?<![\.\d])(?:\d{1,3}\.){3}\d{1,3}(?![\.\d])\') # 使用Pattern匹配文本,获得匹配结果,无法匹配时将返回None ip_list = [ \'1.1.1.1\', \'asasas\', \'098121212121290808\', \'10.10.12.1\', \'188.12.23.4\', ] for ip in ip_list: if pattern.match(ip): print(ip)
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