根据重复值对列表进行排序

def sort_by_repeats(lst):
    # 统计每个元素的重复次数
    count_dict = {}
    for item in lst:
        if item in count_dict:
            count_dict[item] += 1
        else:
            count_dict[item] = 1
    
    # 转化为元组列表
    count_list = [(item, count) for item, count in count_dict.items()]
    
    # 根据重复次数进行降序排序
    sorted_list = sorted(count_list, key=lambda x: x[1], reverse=True)
    
    # 提取排序后的元素
    result = [item for item, count in sorted_list]
    
    return result

# 示例用法
lst = [1, 2, 3, 2, 4, 1, 3, 4, 4, 5]
sorted_lst = sort_by_repeats(lst)
print(sorted_lst)