jxapp_6451 发表于 2016-11-10 02:43 
列表里会多出信息,
试了一下只有这样能返回需要的结果
然后尝试了这个循环无果
I would not worry about the attributes. It would not hurt and you will be able to use the elements of the list the same way as a vector without any attributes.
If you insist on non-attribute vectors in the list:
In your loop you will have to replace
by
to make it work.