python list套list如何去重

可以使用列表推导式和set()函数来去重python list套list。具体方法如下：
1. 列表推导式：使用两层循环，外层循环遍历每个子列表，内层循环遍历子列表中的元素，将不重复的元素添加到新列表中。
2. set()函数：将所有子列表转换为集合，再将集合转换为列表，即可去重。

代码示例：
1. 列表推导式

lst = [[1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 6], [5, 6, 7], [6, 7, 8], [7, 8, 9], [8, 9, 10], [9, 10, 11], [10, 11, 12], [11, 12, 13], [12, 13, 14], [13, 14, 15], [14, 15, 16], [15, 16, 17], [16, 17, 18], [17, 18, 19], [18, 19, 20], [19, 20, 21], [20, 21, 22]]
new_lst = []
[new_lst.append(sub_lst) for sub_lst in lst if sub_lst not in new_lst]
print(new_lst)

2. set()函数

lst = [[1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 6], [5, 6, 7], [6, 7, 8], [7, 8, 9], [8, 9, 10], [9, 10, 11], [10, 11, 12], [11, 12, 13], [12, 13, 14], [13, 14, 15], [14, 15, 16], [15, 16, 17], [16, 17, 18], [17, 18, 19], [18, 19, 20], [19, 20, 21], [20, 21, 22]]
new_lst = list(set(tuple(sub_lst) for sub_lst in lst))
new_lst = [list(sub_lst) for sub_lst in new_lst]
print(new_lst)