在不使用Python的内置可迭代函数的情况下，对单词列表中的变形词列表进行分组

def group_anagrams(words):
    groups = {}
    for word in words:
        anagrams = generate_anagrams(word)
        for anagram in anagrams:
            if anagram in groups:
                groups[anagram].append(word)
            else:
                groups[anagram] = [word]
    return list(groups.values())

def generate_anagrams(word):
    # 生成变形词列表的方法，这里省略具体实现
    pass

# 示例用法
word_list = ["eat", "tea", "tan", "ate", "nat", "bat"]
result = group_anagrams(word_list)
print(result)