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用 Python 批量处理 Excel:三行代码搞定重复工作(收藏级)

  • 2026-06-23 04:32:54
用 Python 批量处理 Excel:三行代码搞定重复工作(收藏级)

1. 环境准备(一次配置,长期受益)

  • 安装依赖:

    在控制台输入以下命令

pip install pandas openpyxl xlsxwriter -i https://mirrors.aliyun.com/pypi/simple/

2. 三行代码打开 → 修改 → 保存

  • 万事开头难:笔者自己也是一个懒惰的p人,所以读者朋友们,开始写第一句代码才是搞定excel的第一步,让我们准备一个有A列,B列的excel,放在我们要写的代码的同一级目录下。

  • 编写代码:

  • 结果:

核心思路:把 Excel当“DataFrame 表”操作——选列/选行、修改值、保存文件,一气呵成。

3. 常见清洗:筛选、选择列、计算新列

  • 是不是大家都碰到过这种糟心事:文件夹堆着十几份日报表格,表头看上去差别不大,可汇总的时候问题一大堆。时间格式乱七八糟,有 2025/4/1、2025-04-01,还有直接写 4 月 1 日的;数值栏里本该填数字,却掺杂着 —、NA 这类占位符号。

  • 手动复制粘贴、逐个修正格式,折腾半天特别耗精力。

    为此写了一段简易脚本,三步搞定全部工作:

  • 👉 批量自动整合全部 Excel 文件,省去手动复制粘贴

  • 👉 标准化日期与数字格式,同步计算数据偏差

  • 👉 自动生成汇总表、透视表格,一键整体导出

  • 原始合并:所有 Excel 纵向堆叠 + 偏差列

  • 按日聚合:每天每厂的计划/实际/偏差合计

  • 透视表:行=电厂,列=日期,值=实际合计

运行后,你就会在 output/结果总表.xlsx 看到完整分析工作簿。

这段把“业务规则”写成函数,是最可维护的方式。

4. 总结

今天你用 pandas 打通了 Excel 自动化的核心路径:

  • 自动合并多文件

  • 自动清洗并计算偏差

  • 自动输出汇总、透视报表

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    • 第一部分:Python 基础入门讲解 Python 核心基础概念、开发环境搭建与全套基础语法知识。

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      第三部分:脱离 Excel 软件读写表格演示依靠 Pandas 搭配专用读写库,直接读取、写入 Excel 文件,无需打开 Excel 本体。

      第四部分:xlwings 操控 Excel 程序利用 xlwings 实现对 Excel 软件本身的编程控制,实现表格自动化批量处理,打造 Python 驱动的 Excel 高效工具。

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    1. CONNECT:[ UseTime:0.000825s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
    2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001019s ]
    3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000315s ]
    4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000250s ]
    5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000506s ]
    6. SELECT * FROM `set` [ RunTime:0.000197s ]
    7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000626s ]
    8. SELECT * FROM `article` WHERE `id` = 531881 LIMIT 1 [ RunTime:0.000777s ]
    9. UPDATE `article` SET `lasttime` = 1782696214 WHERE `id` = 531881 [ RunTime:0.012326s ]
    10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000727s ]
    11. SELECT * FROM `article` WHERE `id` < 531881 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001169s ]
    12. SELECT * FROM `article` WHERE `id` > 531881 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001337s ]
    13. SELECT * FROM `article` WHERE `id` < 531881 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003814s ]
    14. SELECT * FROM `article` WHERE `id` < 531881 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001923s ]
    15. SELECT * FROM `article` WHERE `id` < 531881 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006100s ]
    0.194334s