如何合并两个嵌套列表并输出元组列表？

def merge_lists(list1, list2):
    result = []
    for sublist1 in list1:
        for sublist2 in list2:
            merged_tuple = tuple(sublist1 + sublist2)
            result.append(merged_tuple)
    return result

# 示例数据
list1 = [[1, 2], [3, 4]]
list2 = [[5, 6], [7, 8]]

# 合并两个嵌套列表并输出元组列表
merged_list = merge_lists(list1, list2)
print(merged_list)

[(1, 2, 5, 6), (1, 2, 7, 8), (3, 4, 5, 6), (3, 4, 7, 8)]