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  • 爬取校园新闻首页的新闻

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

    for news in soup.select('li'):
        if len(news.select('.news-list-litle'))>0:
            t = news.select('.news-list-title')[0].text
            dt = news.select('.news-list-info')[0].contents[0].text
            a = news.select('a')[0].attrs['href']
            print(dt, t, a)
            break
    for news in soup.select('li'):
        if len(news.select('.news-list-title'))>0:
            t = news.select('.news-list-title')[0].text
            a = news.select('a')[0].attrs['href']
            print(a)
            resd = requests.get(a)
            resd.encoding ='utf-8'
            soupd = BeautifulSoup(resd.text,'html.parser')
            print(soupd.select('.show-info')[0].text)
            break

    3. 将其中的发布时间由str转换成datetime类型。

    import requests
    from bs4 import BeautifulSoup
    from datetime import datetime
    
    gzccurl = 'http://news.gzcc.cn/html/xiaoyuanxinwen/'
    res = requests.get(gzccurl)
    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
            dt = datetime.strptime(time,'%Y-%m-%d')
            source = news.select('.news-list-info')[0].contents[1].text
            print(dt,'
    ',title,'
    ',url,'
    ',source,'
    ')

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  • 原文地址:https://www.cnblogs.com/darkhate/p/8691945.html
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