小编nan*_*nan的帖子

如何从列表中删除元素ex: - list = [1 2 3 4]

我想出了一些代码.我想我错了.

 (define delete item
   (lambda (list)
   (cond
    ((equal?item (car list)) cdr list)
     (cons(car list)(delete item (cdr list))))))