第一次爬虫实例

最新推荐文章于 2025-08-10 21:30:56 发布

Fang_best

最新推荐文章于 2025-08-10 21:30:56 发布

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CC 4.0 BY-SA版权

文章标签：爬虫

本文链接：https://blog.youkuaiyun.com/qq_37298351/article/details/85859664

本文介绍了一个使用Python进行网络爬虫的实际案例，目标是从糗事百科网站抓取段子内容。通过解析网页源代码，利用正则表达式匹配并提取用户名和段子文本，最终将数据保存为字典形式。

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爬取段子实例

仅供学习参考

import urllib.request
import ssl
import json
import re

def jokeCrawler(url):
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.202 Safari/535.1"
    }

    req = urllib.request.Request(url,headers=headers)

    context = ssl._create_unverified_context()

    response = urllib.request.urlopen(req,context=context)

    HTML = response.read().decode('utf-8')

    pat =r'<div class="author clearfix">(.*?)<span class="stats-vote"><i class="number">'

    re_joke = re.compile(pat,re.S)
    divslist = re_joke.findall(HTML)
    #print(divslist)
    #print(len(divslist))

    dic = {}
    for div in divslist:
        #用户名：
        re_u =re.compile(r'<h2>(.*?)</h2>',re.S)
        username = re_u.findall(div)
        username = username[0]
        #print(username)
        #print(type(username))
        #段子
        re_d = re.compile(r'<div class="content">\n<span>(.*?)</span>', re.S)
        duanzi = re_d.findall(div)
        duanzi = duanzi[0]
        #print(duanzi)
        #print(type(duanzi))

        dic[username] = duanzi
    return dic

    #with open(r'/Users/fangjun/Desktop/PythonWork/file/file3.html','w') as f:
      #  f.write(HTML)





url = 'https://www.qiushibaike.com/text/'
info = jokeCrawler(url)


for k,v in info.items():
    print(k,v)