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pandas 处理 Excel 实战:从读取、清洗到导出全流程

  • 2026-11-10 11:22:59
pandas 处理 Excel 实战:从读取、清洗到导出全流程

手动处理 Excel 太慢、易出错？用 pandas 几行代码就能完成数据读取、筛选、清洗、合并、统计、导出全流程。这篇整理了 pandas 处理 Excel 最常用的实战代码，覆盖职场高频场景，注释清晰，复制改个文件名就能运行，让你真正用 Python 自动化处理表格。

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  1. 请求信息 : 2026-11-10 22:17:04 HTTP/1.1 GET : http://h.sjds.net/a/492404.html
  2. 运行时间 : 0.091895s [ 吞吐率：10.88req/s ] 内存消耗：4,343.88kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=8f29d8695d3626f53c1a7bd29bf454be
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  1. CONNECT:[ UseTime:0.000655s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000794s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000448s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000407s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000741s ]
  6. SELECT * FROM `set` [ RunTime:0.000349s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000821s ]
  8. SELECT * FROM `article` WHERE `id` = 492404 LIMIT 1 [ RunTime:0.000423s ]
  9. UPDATE `article` SET `lasttime` = 1794320224 WHERE `id` = 492404 [ RunTime:0.001613s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000372s ]
  11. SELECT * FROM `article` WHERE `id` < 492404 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000502s ]
  12. SELECT * FROM `article` WHERE `id` > 492404 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000530s ]
  13. SELECT * FROM `article` WHERE `id` < 492404 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000621s ]
  14. SELECT * FROM `article` WHERE `id` < 492404 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000749s ]
  15. SELECT * FROM `article` WHERE `id` < 492404 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000873s ]
0.102841s