xpath匹配一个标签下所有内容

from lxml import etree
import requests

url = 'http://www.shihuo.cn/youhui/474770.html#qk=youhui_list'
response = requests.get(url)
text = etree.HTML(response.text)

tt = text.xpath("//div[@class='article']")
info = tt[0].xpath("string(.)")