python 包之 re 正则匹配教程分享

import re

print(re.match('飞兔小哥', '飞兔小哥教你零基础学编程'))
print(re.match('学编程', '飞兔小哥教你零基础学编程'))

import re

print(re.fullmatch('飞兔小哥教你零基础学编程', '飞兔小哥教你零基础学编程'))
print(re.fullmatch('飞兔小哥', '飞兔小哥教你零基础学编程'))

import re

print(re.search('autofelix', '飞兔小哥教你零基础学编程'))
print(re.search('飞兔小哥', '飞兔小哥教你零基础学编程'))

import re

# 去掉电话号码中的-
num = re.sub(r'\D', '', '188-1926-8053')
print(num)
# 18819268053

import re

# 去掉电话号码中的-
num = re.subn(r'\D', '', '188-1926-8053')
print(num)
# (18819268053, 2)

import re

print(re.split('a*', 'hello world'))
# ['', 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd', '']

print(re.split('a*', 'hello world', 1))
# ['', 'hello world']

import re

pattern = re.compile(r'\W+')
result1 = pattern.findall('hello world!')
result2 = pattern.findall('hello world!', 0, 7)

print(result1)
# [' ', '!']

print(result2)
# [' ']

import re

pattern = re.compile(r'\W+')
result = pattern.finditer('hello world!')
for r in result:
print(r)

import re

pattern = re.compile(r'\W+')

import re

content = "Cats are smarter than dogs"
print(re.search(r'DOGS', content, re.M | re.I))