判断一个字符串为IP 地址

不用正则：

使用正则（转载）

import re

defisIP(str):

p = re.compile('^((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$')

if p.match(str):

return True

else:

return False

myStr ="10.69.36.95"

if isIP(myStr):

print(myStr,"it is a IP!")

else:

print(myStr,"it is not a IP!")

下面是某个字符串是否包含ip地址：

import re

defip_exist_two(one_url):

compile_rule = re.compile(r'(?

match_list = re.findall(compile_rule, one_url)

if match_list:

print (match_list)

else:

print('missing................')

defip_exist_one(one_url):

compile_rule = re.compile(r'\d+[\.]\d+[\.]\d+[\.]\d+')

match_list = re.findall(compile_rule, one_url)

if match_list:

print( match_list)

else:

print ('missing................')

if __name__ =='__main__':

ip_list = ['http://101.23.45.67/sd/sd.html','http://www.baidu.com',

'http://34.54.65.3/dsdfjkk.htm','http://dhj.fdjjd.com/78078979/dsdfjkk.htm']

for one_urlin ip_list:

ip_exist_one(one_url)

print ('****************************************************')

for one_urlin ip_list:

ip_exist_two(one_url)

主要参考代码链接：https://www.jb51.net/article/141424.htm

https://www.cnblogs.com/ccz320/p/6536993.html