如何在Python中的特定单元格值前插入空行？

pip install openpyxl

from openpyxl import Workbook, load_workbook

def insert_empty_row(filename, sheetname, cell_value):
    # 加载工作簿
    workbook = load_workbook(filename)
    # 选择工作表
    sheet = workbook[sheetname]
    
    # 遍历每一行，找到特定单元格值所在的行
    for row in sheet.iter_rows():
        for cell in row:
            if cell.value == cell_value:
                # 获取该单元格所在的行号
                row_num = cell.row
                # 在该行之前插入一个空行
                sheet.insert_rows(row_num)
                # 保存修改
                workbook.save(filename)
                return
    
    # 如果未找到特定单元格值，则打印提示信息
    print(f"未找到值为'{cell_value}'的单元格。")

insert_empty_row("example.xlsx", "Sheet1", "特定值")