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干货:用Python进行数据清洗,这5种方法你一定要掌握

  • 2026-03-20 00:21:24
干货:用Python进行数据清洗,这5种方法你一定要掌握
Python 数据清洗操作速查表，用 Pandas 库进行数据预处理的常见方法。
内容分为五个部分：
这些操作是数据清洗中最基本且常用的步骤，有助于将原始数据转化为可分析的数据格式。
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. CONNECT:[ UseTime:0.000424s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000727s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000282s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000279s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000521s ]
  6. SELECT * FROM `set` [ RunTime:0.000238s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000538s ]
  8. SELECT * FROM `article` WHERE `id` = 479760 LIMIT 1 [ RunTime:0.000360s ]
  9. UPDATE `article` SET `lasttime` = 1774619795 WHERE `id` = 479760 [ RunTime:0.012292s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000244s ]
  11. SELECT * FROM `article` WHERE `id` < 479760 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000445s ]
  12. SELECT * FROM `article` WHERE `id` > 479760 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000384s ]
  13. SELECT * FROM `article` WHERE `id` < 479760 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000672s ]
  14. SELECT * FROM `article` WHERE `id` < 479760 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001663s ]
  15. SELECT * FROM `article` WHERE `id` < 479760 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003383s ]
0.092748s