对于正则表达式的所有方法的运用有什么举例吗？

1.打开豆瓣读书的网站，查看网页源代码

2.import requests 

import re

content=requests.get(https://book.douban.com/).text

pattern=re.compile(<li.*?cover.*?href="(.*?)".*?title="(.*?)".*?more-meta.*?author">(.*?)</span>.*?year">(.*?)</span>.*?</li>’,re.S)

results=re.findall(patten,content) 

for result in resuits:

url, name, author,date=result 

author=re.sub('\s.". author) 

date=re.sub('ls.". date) 

print(url, name, author, date)