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搞定这 9 个 Pandas 操作,Python 数据处理直接稳了

  • 2026-03-26 12:28:59
搞定这 9 个 Pandas 操作,Python 数据处理直接稳了
Pandas是Python数据分析的强大工具，掌握其核心操作能显著提升效率。
今天分享9个必须掌握的Python-Pandas操作：
从数据导入（如pd.read_csv()）到导出（如df.to_csv()），包括数据选择、操作、清洗、字符串处理、统计分析、时间序列及高级功能（如方法链和df.explode()）。
实用建议： 
1️⃣ 创建DataFrame视图时使用.copy()避免修改原数据； 
2️⃣ 通过方法链优化代码； 
3️⃣ 为分类列设置dtype='category'以节省内存； 
4️⃣ 优先使用inplace=True就地操作以提高效率。 
熟练掌握后，你将能更高效地处理和分析数据！
相对应的数据分析视频教程、课件源码、学习笔记，项目等已打包好，有需要🉑关㊗️，厚台留“学习”即可带走，会手把手教你技术，上手实操等等。
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:0.000577s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000902s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000314s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000283s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000489s ]
  6. SELECT * FROM `set` [ RunTime:0.000189s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000524s ]
  8. SELECT * FROM `article` WHERE `id` = 482065 LIMIT 1 [ RunTime:0.000391s ]
  9. UPDATE `article` SET `lasttime` = 1774576355 WHERE `id` = 482065 [ RunTime:0.003882s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000302s ]
  11. SELECT * FROM `article` WHERE `id` < 482065 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000451s ]
  12. SELECT * FROM `article` WHERE `id` > 482065 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000432s ]
  13. SELECT * FROM `article` WHERE `id` < 482065 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003992s ]
  14. SELECT * FROM `article` WHERE `id` < 482065 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006641s ]
  15. SELECT * FROM `article` WHERE `id` < 482065 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003231s ]
0.091695s