import requests
import re
url = 'http://www.tipdm.com/tipdm/index.html'
rq = requests.get(url)
#print(rq.text)
rq.encoding = 'utf-8'
print(re.findall('<li><a href="[a-z.:/]+" target="">(.+)</a></li>',rq.text))#括号表示提取里面的内容