9 阅读有关破坏性操作位置: http://www.gigamonkeys.com/book/they-called-it-lisp-for-a-reason-list-processing.html 来源 2011-02-13 07:44:26 Linearity +4 N是不consing。好。 – DSblizzard
N是不consing。好。 – DSblizzard