遍历得到某列中断的行数（位置）

import openpyxl

from openpyxl import Workbook

file_name = 'wb.xlsx'
wb1 = openpyxl.load_workbook(file_name)

sheets = wb1.sheetnames

li_to_func2 = []
for sheet in sheets:

    ws1 = wb1[sheet]
    li_count = []
    for i in range(1, ws1.max_row+2):

        code = ws1.cell(row=i, column=1).value

        if not code and len(li_count) < 1:
            li_count.append(i-1)
            # 找到第一列中断的行数
            print(li_count, sheet)