linux
no.1 ipv4
下面是ipv4的ip正则匹配实例:
简单的匹配给定的字符串是否是ip地址
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import reif re.match(r"^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$", "236.168.192.1"): print "ip vaild" else: print "ip invaild" |
精确的匹配给定的字符串是否是ip地址
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import reif re.match(r"^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$", "236.168.192.1"): print "ip vaild" else: print "ip invaild" |
简单从长文本中提取ip
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import restring_ip = "is this 236.168.192.1 ip 12321"result = re.findall(r"\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b", string_ip)if result: print resultelse: print "re cannot find ip" |
精准提取ip
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import restring_ip = "is this 236.168.192.1 ip 12321"result = re.findall(r"\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b", string_ip)if result: print resultelse: print "re cannot find ipno.2 ipv6string_ipv6="1050:0:0:0:5:600:300c:326b"#匹配是否满足ipv6格式要求,请注意例子里大小写不敏感if re.match(r"^(?:[a-f0-9]{1,4}:){7}[a-f0-9]{1,4}$", string_ipv6, re.i): print "ipv6 vaild"else: print "ipv6 invaild"#提取ipv6，例子里大小写不敏感result = re.findall(r"(?<![:.\w])(?:[a-f0-9]{1,4}:){7}[a-f0-9]{1,4}(?![:.\w])", string_ipv6, re.i)#打印提取结果print result |
总结
以上所述是小编给大家介绍的python正则表达式匹配和提取ip地址，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：https://fashengba.com/post/Python-regular-matches-ip.html
