1
(member? 'a '((d d) (d d)))
返回false
我究竟做错了
(define (member? x list)
(cond
((null? list) #t)
(else (or (or (eq? (car (car list)) x) (eq? (cdr (car list)) x)) (member? x (cdr list)))
)))
如果有人能告诉我什么是错我的会员功能,我将不胜感激。
谢谢你,那工程:) – marcwho 2012-03-15 16:32:40