练习 2.53

来源:互联网 发布:淘宝装修店铺怎么弄的 编辑:程序博客网 时间:2024/05/02 18:36
#lang racket;: 练习 2.53(list 'a 'b 'c) ;: '(a b c)(list (list 'george)) ;: '((george))(cdr '((x1 x2) (y1 y2))) ;: '((y1 y2))(cadr '((x1 x2) (y1 y2))) ;: '(y1 y2)(pair? (car '(a short list))) ;: #f(memq 'red '((red shoes) (blue socks))) ;: #f(memq 'red '(red shoes blue socks)) ;: (red shoes blue socks)
0 0
原创粉丝点击