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Python Excel實現(xiàn)自動添加編號

更新時間：2025年03月13日 15:08:34 作者：一晌小貪歡

這篇文章主要為大家詳細介紹了如何使用Python在Excel中實現(xiàn)自動添加編號效果,文中的示例代碼講解詳細,感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下

1、背景介紹

簡單的說，就是在Excel中有一列h=會有重復(fù)的編號，我們相對這個重復(fù)的編號，再次進行編號，使其如有重復(fù)就加上-1，-2，-3。。。。。以此類推，將重新生成【新編號】放在其旁邊列

2、庫的安裝

庫	用途	安裝
openpyxl	Excel讀取	pip install openpyxl -i https://pypi.tuna.tsinghua.edu.cn/simple/
os	獲取路徑	內(nèi)置庫無需安裝

3、核心代碼

①：編號列的值進行計數(shù)

遍歷Excel文件的每一行，對編號列的值進行計數(shù)。
根據(jù)計數(shù)值生成新的格式化字符串編號-計數(shù)值，并更新到結(jié)果編號列。
支持單個文件處理和批量文件處理。

for row_idx in range(2, ws.max_row + 1):
    # Get the 序號 value
    序號_value = ws.cell(row=row_idx, column=序號_index).value

    # Skip if 序號 is None or empty
    if 序號_value is None or str(序號_value).strip() == '':
        continue

    # Convert to string to handle any numeric values
    序號_str = str(序號_value)

    # Initialize count if this is the first occurrence
    if 序號_str not in 序號_counts:
        序號_counts[序號_str] = 0

    # Increment the count
    序號_counts[序號_str] += 1

    # Create the new format: "序號-count"
    new_子賬號編號 = f"{序號_str}-{序號_counts[序號_str]}"

    # Update the 子賬號編號 cell
    ws.cell(row=row_idx, column=子賬號編號_index).value = new_子賬號編號

4、完整代碼

import os
import openpyxl


def process_subaccount_numbers(file_path, output_path=None):
    # Load the workbook
    print(f"Reading file: {file_path}")
    wb = openpyxl.load_workbook(file_path)
    ws = wb.active

    # Get the headers
    headers = [cell.value for cell in ws[1]]

    # Find the indices of the required columns
    if '編號' not in headers or '結(jié)果編號' not in headers:
        print("Error: Required columns '序號' or '結(jié)果編號' not found in the Excel file.")
        return

    序號_index = headers.index('編號') + 1  # +1 because openpyxl is 1-indexed
    子賬號編號_index = headers.index('結(jié)果編號') + 1

    # Create a dictionary to track occurrences of each 序號
    序號_counts = {}

    # Process each row (starting from row 2, skipping the header)
    for row_idx in range(2, ws.max_row + 1):
        # Get the 序號 value
        序號_value = ws.cell(row=row_idx, column=序號_index).value

        # Skip if 序號 is None or empty
        if 序號_value is None or str(序號_value).strip() == '':
            continue

        # Convert to string to handle any numeric values
        序號_str = str(序號_value)

        # Initialize count if this is the first occurrence
        if 序號_str not in 序號_counts:
            序號_counts[序號_str] = 0

        # Increment the count
        序號_counts[序號_str] += 1

        # Create the new format: "序號-count"
        new_子賬號編號 = f"{序號_str}-{序號_counts[序號_str]}"

        # Update the 子賬號編號 cell
        ws.cell(row=row_idx, column=子賬號編號_index).value = new_子賬號編號

    # Determine the output path
    if output_path is None:
        file_name, file_ext = os.path.splitext(file_path)
        output_path = f"{file_name}_processed{file_ext}"

    # Save the modified workbook to a new Excel file
    print(f"Saving processed file to: {output_path}")
    wb.save(output_path)
    print("Processing completed successfully!")

    return output_path


def main():
    # Get the data source directory
    data_dir = './數(shù)據(jù)源/'

    # Find all Excel files in the directory
    excel_files = [f for f in os.listdir(data_dir) if f.endswith('.xlsx') or f.endswith('.xls')]

    if not excel_files:
        print("No Excel files found in the data source directory.")
        return

    # Process each Excel file
    for file_name in excel_files:
        file_path = os.path.join(data_dir, file_name)
        process_subaccount_numbers(file_path)


if __name__ == "__main__":
    main()

效果如下