python 操作excel ,累加insert

import os

from openpyxl.reader.excel import load_workbook

import pandas as pd



def insert(relist, one):
    #
    data = [{"pol": one['pol'], "pod": one["pod"], "gc_scac": z["group"], "line": z["line"]} for z in relist]

    headers = ['pol', 'pod', 'gc_scac', 'line']

    # 转换为 DataFrame
    df = pd.DataFrame(data, columns=headers)
    # 文件路径
    file_path = 'gc_data.xlsx'

    # 检查文件是否存在
    if os.path.exists(file_path):
        # 如果文件存在，则追加数据
        book = load_workbook(file_path)
        writer = pd.ExcelWriter(file_path, engine='openpyxl')
        writer.book = book

        # 获取工作表的数量，用于创建新的工作表
        writer.sheets = dict((ws.title, ws) for ws in book.worksheets)
        df.to_excel(writer, index=False, header=False, startrow=writer.sheets['Sheet1'].max_row)

        writer.save()
    else:
        # 如果文件不存在，则创建文件并添加表头
        df.to_excel(file_path, index=False)