爬取校园新闻首页的新闻

老师：MissDu 提交作业

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1. 用requests库和BeautifulSoup库，爬取校园新闻首页新闻的标题、链接、正文。

# -*- coding: UTF-8 -*-
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')
#print(soup)

for news in soup.select('li'):
    if len(news.select('.news-list-title')) > 0 :
        d= news.select('.news-list-info')[0].contents[0].text
        t= news.select('.news-list-title')[0].text
        a = news.select('a')[0].attrs['href']
        print("date = "+d,"text = "+t,"href = "+a)

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。

 resd = requests.get(a)
        resd.encoding = 'utf-8'
        soupd = BeautifulSoup(resd.text,'html.parser')
        c = soupd.select('#content')[0].text
        info = soupd.select(".show-info")
        print(info[0].text)

3. 将其中的发布时间由str转换成datetime类型。

info_text = '发布时间:2018-04-01 11:57:00      作者：陈流芳??审核：权麟春  来源：马克思主义学院      点击：次'
dt = info_text.lstrip('发布时间:')[:19]
sh = info_text[info_text.find('审核：'):].split()[0].lstrip('审核：')
print(type(dt),dt)
from datetime import datetime
date_format = datetime.strptime(dt,'%Y-%m-%d %H:%M:%S')
print(type(date_format),date_format)