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Python办公自动化—操作 Excel 数据实战!

  • 2026-11-07 16:33:18

Python办公自动化—操作 Excel 数据实战！

小结
洗数据用 drop_duplicates / astype / to_datetime / dropna
筛选是布尔索引，多条件用 & | 并加括号
分组统计 groupby + 聚合，等价于数据透视

跨表关联用 merge，比 VLOOKUP 稳
透视表 pivot_table 一行出，多维汇总直接存 xlsx
守住六坑：引擎、index=False、类型、空值、位运算、中文路径

湖北,2小时前,
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Excel 最强教科书》精读 (2)之一

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  1. CONNECT:[ UseTime:0.000438s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000592s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000332s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000356s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000550s ]
  6. SELECT * FROM `set` [ RunTime:0.000293s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000704s ]
  8. SELECT * FROM `article` WHERE `id` = 568944 LIMIT 1 [ RunTime:0.000333s ]
  9. UPDATE `article` SET `lasttime` = 1794152749 WHERE `id` = 568944 [ RunTime:0.001323s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000333s ]
  11. SELECT * FROM `article` WHERE `id` < 568944 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000414s ]
  12. SELECT * FROM `article` WHERE `id` > 568944 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000349s ]
  13. SELECT * FROM `article` WHERE `id` < 568944 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000509s ]
  14. SELECT * FROM `article` WHERE `id` < 568944 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000603s ]
  15. SELECT * FROM `article` WHERE `id` < 568944 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000569s ]
0.117316s