This lets me have a way of representing things that could be arbitrary in size. And some of these things could be huge, if they're themselves lists.
有些可能很大,如,果他们本身就是列表,那问题来了。
麻省理工公开课 - 计算机科学及编程导论课程节选
应用推荐
模块上移
模块下移
不移动