if __name__ == "__main__":
    wb = xl.load_workbook("test.xlsx")
    sheet_ = wb["Sheet1"]
    print(sheet_["A1"].value)  # 1
    print(sheet_["A2"].value)  # None
    print(sheet_["D1"].value)  # 8
    print(sheet_["D2"].value)  # None
    print(sheet_["D3"].value)  # None

if __name__ == "__main__":
    wb = xl.load_workbook("test.xlsx")
    sheet_ = wb["Sheet1"]
    merged_ranges = sheet_.merged_cell_ranges  # 获取当前工作表的所有合并区域列表
    for merged_range in merged_ranges:
        print(type(merged_range))  # 打印区域对象类型
        print(merged_range)  # 打印区域

import openpyxl as xl
from openpyxl.worksheet.worksheet import Worksheet
from openpyxl.cell import MergedCell


def parser_merged_cell(sheet: Worksheet, row, col):
    """
    检查是否为合并单元格并获取对应行列单元格的值。
    如果是合并单元格，则取合并区域左上角单元格的值作为当前单元格的值,否则直接返回该单元格的值
    :param sheet: 当前工作表对象
    :param row: 需要获取的单元格所在行
    :param col: 需要获取的单元格所在列
    :return: 
    """
    cell = sheet.cell(row=row, column=col)
    if isinstance(cell, MergedCell):  # 判断该单元格是否为合并单元格
        for merged_range in sheet.merged_cell_ranges:  # 循环查找该单元格所属的合并区域
            if cell.coordinate in merged_range:
                # 获取合并区域左上角的单元格作为该单元格的值返回
                cell = sheet.cell(row=merged_range.min_row, column=merged_range.min_col)
                break
    return cell


if __name__ == "__main__":
    wb = xl.load_workbook("test.xlsx")
    sheet_ = wb["Sheet1"]

    for row_index in range(1, 4):
        for col_index in range(1, 5):
            cell_ = parser_merged_cell(sheet_, row_index, col_index)
            print("第%s行第%s列：%s" % (row_index, col_index, cell_.value))