1. 用requests库和BeautifulSoup库,爬取校园新闻首页新闻的标题、链接、正文。
import requests
newsurl = 'http://news.gzcc.cn/html/xiaoyuanxinwen/'
res = requests.get(newsurl) # 返回response对象
res.encoding = 'utf-8'
from bs4 import BeautifulSoup
soup = BeautifulSoup(res.text, 'html.parser')
for news in soup.select("li"):
if(len(news.select('.news-list-info'))>0):
print(news.select('a')[0].attrs['href'])
print(news.select('.news-list-title')[0].text)
a = news.select('a')[0].attrs['href']
rq = requests.get(a)
rq.encoding="utf-8"
soup2 = BeautifulSoup(rq.text, 'html.parser')
print(soup2.select("#content")[0].text)
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。
info = soup.select(".show-info")[0].text author = info[info.find('作者:'):].split()[0].lstrip('作者:') source = info[info.find('来源:'):].split()[0].lstrip('来源:') Auditing = info[info.find('审核:'):].split()[0].lstrip('审核:') photo = info[info.find('摄影:'):].split()[0].lstrip('摄影:') print(author,source,Auditing,photo)
3. 将其中的发布时间由str转换成datetime类型。
from datetime import datetime da = datetime.strptime(dt,"%Y-%m-%d %H:%M:%S") print(type(da)) print(da,writer,sh,ly) break;