Python字符串匹配之6种方法的使用详解

import re
line="this hdr-biz 123 model server 456"
pattern=r"123"
matchObj = re.match( pattern, line)

import re
line="this hdr-biz model server"
pattern=r"hdr-biz"
m = re.search(pattern, line)

import re
line="this hdr-biz model args= server"
patt=r'args='
name = re.sub(patt, "", line)

import re
pattern = re.compile(r'\d+')

import re
line="this hdr-biz model args= server"
patt=r'server'
pattern = re.compile(patt)
result = pattern.findall(line)

import re
it = re.finditer(r"\d+","12a32bc43jf3")
for match in it:
 print (match.group() )

regexp = (r'^(?P<scheme>[a-z][\w\.\-\+]+)?:(//)?'
     r'(?:(?P<username>\w+):(?P<password>[\w\W]+)@|)'
     r'(?P<domain>[\w-]+(?:\.[\w-]+)*)(?::(?P<port>\d+))?/?'
     r'(?P<path>\/[\w\.\/-]+)?(?P<query>\?[\w\.*!=&@%;:/+-]+)?'
     r'(?P<fragment>#[\w-]+)?$')
match = re.search(regexp, url.strip(), re.U)
if match is None:
  raise ValueError('Incorrent url: {0}'.format(url))
url_parts = match.groupdict()
url='https://blog.csdn.net/weixin_40907382/article/明细/79654372'
print(url_parts):{'scheme': 'https', 'username': None, 'password': None, 'domain': 'blog.csdn.net', 'port': None, 'path': '/weixin_40907382/article/明细/79654372', 'query': None, 'fragment': None}