爬取校园新闻首页的新闻
1. 用requests库和BeautifulSoup库,爬取校园新闻首页新闻的标题、链接、正文。
标题
import requests from bs4 import BeautifulSoup url = 'http://news.gzcc.cn/html/xiaoyuanxinwen/' res = requests.get(url) res.encoding='utf-8' soup = BeautifulSoup(res.text,'html.parser') for news in soup.select('li'): if len(news.select('.news-list-title'))>0: break for news in soup.select('li'): if len(news.select('.news-list-title'))>0: t = news.select('.news-list-title')[0].text print(t) break
链接
import requests from bs4 import BeautifulSoup url = 'http://news.gzcc.cn/html/xiaoyuanxinwen/' res = requests.get(url) res.encoding='utf-8' soup = BeautifulSoup(res.text,'html.parser') for news in soup.select('li'): if len(news.select('.news-list-title'))>0: break for news in soup.select('li'): if len(news.select('.news-list-title'))>0: t = news.select('.news-list-title')[0].text link = news.select('a')[0].attrs['href'] print(link) break
正文
resd = requests.get(link) resd.encoding='utf-8' soupd = BeautifulSoup(resd.text,'html.parser') d = soupd.select('#content')[0].text print(d) break
2. 分析字符串,获取每篇新闻的发布时间,作者,来源,摄影等信息。
发布时间
info = soupd.select('.show-info')[0].text
t1 = info.lstrip('发布时间:')[:19]
print(t1)
作者来源摄影等
s = info[info.find('来源:'):].split()[0].lstrip('来源:')
print(s)
3. 将其中的发布时间由str转换成datetime类型。
from datetime import datetime dt = datetime.strptime(t1,'%Y-%m-%d %H:%M:%S') now = datetime.now() print(dt)