python 9.28作业

1.用requests库和BeautifulSoup4库，爬取校园新闻列表的时间、标题、链接、来源

import requests
from bs4 import BeautifulSoup
a=requests.get('http://news.gzcc.cn/html/xiaoyuanxinwen/')
a.encoding='utf-8'
soup=BeautifulSoup(a.text,'html.parser')
for xinwen in soup.select('li'):
    if len(xinwen.select('.news-list-description'))>0:
        time = xinwen.select('.news-list-info')[0].contents[0].text
        title = xinwen.select('.news-list-description')[0].text
        source = xinwen.select('.news-list-description')[0].text
        url = xinwen.select('a')[0]['href']
        print(time,title,source,url)

2.选一个自己感兴趣的主题，做类似的操作，为“爬取网络数据并进行文本分析”做准备

 

import requests
from bs4 import BeautifulSoup
a=requests.get('http://news.sina.com.cn/china/')
a.encoding='utf-8'
soup=BeautifulSoup(a.text,'html.parser')
for news in soup.select('.news-item'):
if len(news.select('h2'))>0:
h = news.select('h2')[0].text
a = news.select('a')[0]['href']
t = news.select('.time')[0].text

print(t,h,a)