仅给出子列表的数量(长度可变),显示列表的所有可能分组

def generate_groups(sublists):
    if len(sublists) == 0:
        return [[]]
    
    first_sublist = sublists[0]
    remaining_sublists = sublists[1:]
    
    result = []
    for group in generate_groups(remaining_sublists):
        for i in range(len(group) + 1):
            new_group = group[:i] + [first_sublist] + group[i:]
            result.append(new_group)
    
    return result

sublists = [['A', 'B'], ['C', 'D'], ['E', 'F']]
groups = generate_groups(sublists)
for group in groups:
    print(group)

[['A', 'B'], ['C', 'D'], ['E', 'F']]
[['A', 'B'], ['C', 'D', 'E', 'F']]
[['A', 'B', 'C', 'D'], ['E', 'F']]
[['A', 'B', 'C', 'D', 'E', 'F']]
[['A', 'B', 'E', 'F'], ['C', 'D']]
[['A', 'B', 'C', 'D', 'E', 'F']]
[['A', 'B', 'C', 'D', 'E', 'F']]
[['A', 'B', 'C', 'D', 'E', 'F']]