9-28新闻爬虫，自己喜欢的类型爬虫

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
>>> newsurl = 'http://news.gzcc.cn/html/xiaoyuanxinwen/'
>>> res = requests.get(newsurl)
>>> res.encoding='utf-8'
>>> soup = BeautifulSoup(res.text,'html.parser')
>>> print(soup.text)

 

• 将其中的时间str转换成datetime类型。

 

 

>>> 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:
        title=news.select('.news-list-title')[0].text#标题
        url = news.select('a')[0]['href']#链接
        time = news.select('.news-list-info')[0].contents[0].text#时间
        source = news.select('.news-list-info')[0].contents[1].text#来源
        print(time,url,time,source)

 

 

dt=datetime.strptime(time,'%Y-%m-%d')

 

 

• 选一个自己感兴趣的主题，做类似的操作，为后面“爬取网络数据并进行文本分析”做准备。

 

ModuleNotFoundError: No module named 'request'
>>> import requests
>>> from bs4 import BeautifulSoup
>>> url='http://www.91.com/'
>>> res=requests.get(url)
>>> res.encoding='utf-8'
>>> soup = BeautifulSoup(res.text,'html.parser')
>>> soup.select('.side-news-list')