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。
show = soup2.select(".show-info")[0].text.split()
dt = show[0].lstrip(‘发布时间:‘) + " " + show[1]
writer = show[2].lstrip(‘作者:‘)
sh = show[3].lstrip(‘审核:‘)
ly = show[4].lstrip(‘来源:‘)
print(dt,"\t", writer,"\t", sh, "\t",ly)
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;
 