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3行Python代码批量处理

  • 2026-02-08 12:56:06
3行Python代码批量处理

还在为加班手动整理几十张Excel表格抓狂?学会这个Python技巧,3行核心代码就能搞定批量读取、合并、筛选,让你准时下班!

一、准备工作:安装必备库

我们需要用到 pandas(数据处理神器)和 openpyxl(Excel文件读写支持),打开命令行输入以下代码安装:

pythonpip install pandas openpyxl

二、核心实战:批量合并多份Excel

假设你有一个文件夹,里面全是格式相同的销售数据Excel表,现在要合并成一个总表,步骤如下:

1. 导入库并设置文件夹路径

pythonimport pandas as pdimport os# 替换成你的Excel文件夹路径folder_path = "C:/销售数据"

2. 3行核心代码实现批量合并

python# 读取文件夹内所有Excel文件file_list = [f for f in os.listdir(folder_path) if f.endswith(".xlsx")]# 批量读取并合并df_total = pd.concat([pd.read_excel(os.path.join(folder_path, f)) for f in file_list])# 保存到新Exceldf_total.to_excel("销售总表.xlsx", index=False)

运行代码,几秒钟就能得到合并好的总表,再也不用手动复制粘贴!

三、进阶技巧:按条件筛选数据

如果只想保留销售额大于1000的数据,只需在合并后加一行代码:

pythondf_filter = df_total[df_total["销售额"] > 1000]df_filter.to_excel("高销售额数据.xlsx", index=False)

写在最后

Python办公自动化真的能帮我们节省大量重复工作时间!

关注本公众号,回复关键词 【python】,领取完整代码+注释+实战案例包,还能加入Python学习社群,和上千名小伙伴一起交流进步~

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  1. CONNECT:[ UseTime:0.000688s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001143s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000359s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000278s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000830s ]
  6. SELECT * FROM `set` [ RunTime:0.000270s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000797s ]
  8. SELECT * FROM `article` WHERE `id` = 465814 LIMIT 1 [ RunTime:0.000526s ]
  9. UPDATE `article` SET `lasttime` = 1770531229 WHERE `id` = 465814 [ RunTime:0.009999s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000370s ]
  11. SELECT * FROM `article` WHERE `id` < 465814 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000598s ]
  12. SELECT * FROM `article` WHERE `id` > 465814 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003928s ]
  13. SELECT * FROM `article` WHERE `id` < 465814 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000821s ]
  14. SELECT * FROM `article` WHERE `id` < 465814 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004075s ]
  15. SELECT * FROM `article` WHERE `id` < 465814 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000671s ]
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