使用urllib.request的代码：
import urllib.request
from bs4 import BeautifulSoup
url="http://finance.qq.com/gdyw.htm"
head = {}
head['user_agent']='Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36'
html=urllib.request.urlopen(url).read()
soup=BeautifulSoup(html,'lxml')
print(soup.prettify())
使用requests的代码：
import requests
from bs4 import BeautifulSoup
url = "http://finance.qq.com/gdyw.htm"
response = requests.get(url)
soup = BeautifulSoup(response.text,'lxml')
print(soup.prettify())
urllib.request没有解析到这一块内容，但是requests可以~
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估计是默认的请求头不一样