import openpyxl'''空行插入程序'''def insert_none(n, m, filename):    wb = openpyxl.load_workbook(filename)    sheet = wb.active    wb_new = openpyxl.Workbook()    sheet_new = wb_new.active    # 复制n行前的数据    for i in range(1, n):        for j in range(1, sheet.max_column+1):            sheet_new.cell(row=i, column=j).value = sheet.cell(row=i, column=j).value    # n行后数据写入新的表格中    for i in range(n, sheet.max_row+1):        for j in range(1, sheet.max_column+1):            sheet_new.cell(row=i+m, column=j).value = sheet.cell(row=i, column=j).value    wb_new.save('new.xlsx')if __name__ == '__main__':    insert_none(2, 5, 'multiplication.xlsx')