区别a=[[1,2,3,4,5]];a.dim=2 b=[1,2,3,4,5],b.dim=1 相关文章： 2021-12-11 2022-12-23 2022-12-23 2022-12-23 2021-06-14 2021-05-02 2021-09-10 2022-12-23