用requests库和BeautifulSoup4库爬取新闻列表

Posted 2020-10-08 OK丁

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
network = \'http://news.gzcc.cn/html/jxky/\'
res = requests.get(network)
res.encoding=\'utf-8\'
soup = BeautifulSoup(res.text,\'html.parser\')
for news in soup.select(\'li\'):
    if len(news.select(\'.news-list-title\'))>0:
        title = news.select(\'.news-list-title\')[0].text
        url = news.select(\'a\')[0][\'href\']
        time = news.select(\'.news-list-info\')[0].contents[0].text
        main = news.select(\'.news-list-description\')[0].text
        source = news.select(\'.news-list-info\')[0].contents[1].text
        print(\'链接：{}\'.format(url))
        print(\'标题：{}\'.format(title))
        print(\'正文：{}\'.format(main))
        print(\'时间：{}\'.format(time))
        print(\'来源：{}\'.format(source))

3.将其中的时间str转换成datetime类型。

import requests
from bs4 import BeautifulSoup
from datetime import datetime

network = \'http://news.gzcc.cn/html/jxky/\'
res = requests.get(network)
res.encoding=\'utf-8\'
soup = BeautifulSoup(res.text,\'html.parser\')


for news in soup.select(\'li\'):
    if len(news.select(\'.news-list-title\'))>0:
        title = news.select(\'.news-list-title\')[0].text
        url = news.select(\'a\')[0][\'href\']
        time = news.select(\'.news-list-info\')[0].contents[0].text
        timed = datetime.strptime(time,\'%Y-%m-%d\')
        main = news.select(\'.news-list-description\')[0].text
        source = news.select(\'.news-list-info\')[0].contents[1].text
        print(\'链接：{}\'.format(url))
        print(\'标题：{}\'.format(title))
        print(\'正文：{}\'.format(main))
        print(\'时间：{}\'.format(timed))
        print(\'来源：{}\'.format(source))

 

4.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。