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三分钟学会!用Python爬取网页数据(附源码)

  • 2026-08-19 17:42:08
三分钟学会!用Python爬取网页数据(附源码)

今天给大家整理一套能够实际使用的爬虫流程。从发送请求、解析页面，到设置代理、修改UA以及携带Cookie，相关步骤都会走一遍。

爬虫这件事情并没有想象中那么复杂，本质上就是模拟浏览器进行访问。把需要携带的请求头配置完整，再控制好访问频率，大部分基础的数据采集需求都可以完成。

最后提醒大家，本教程仅用于Python技术学习和实践。在进行网络数据采集之前，请遵守网站Robots协议以及相关法律法规，严禁在没有获得授权的情况下抓取网站数据，守住技术使用的基本红线。
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  1. 请求信息 : 2026-08-21 18:02:36 HTTP/2.0 GET : https://f.mffb.com.cn/a/506629.html
  2. 运行时间 : 0.313164s [ 吞吐率：3.19req/s ] 内存消耗：4,526.99kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=a67059c25ed271085cb31737fceaa960
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  1. CONNECT:[ UseTime:0.001199s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001662s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000679s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000709s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001599s ]
  6. SELECT * FROM `set` [ RunTime:0.000623s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001774s ]
  8. SELECT * FROM `article` WHERE `id` = 506629 LIMIT 1 [ RunTime:0.001071s ]
  9. UPDATE `article` SET `lasttime` = 1787306556 WHERE `id` = 506629 [ RunTime:0.091613s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000664s ]
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0.316600s