Ok, Go ahead. 1 (a) (b) (c) (d) 2 注:union 在 Common Lisp 中的作用就是求两个集合的并集.但是这有一个前提,即给的两个列表已经满足集合的属性了.具体的操作过程似乎是对第一个 list 中的每一个元素在第二个 list 中查找,如无则标记一下:待第一个 list 的所有元素在第二个 list 中查完以后将所有标记过的元素放入一个 list 中与第二个 list 进行合并.这意味着,如果刚开始给的两个 list 不完全满足集合的属性,则会有重复出现…
It has been a long time that I haven't dealt with my blog. On one hand I was preparing the exams.On the other hand I just learn more things and take some documents at local PC. As a result, I begin to learn Lisp as planned. 2.10 Variables let ; defin…
I work out the questions by myself Chapter 2 question 4. (defun greater (x y) (if (> x y) x y ) ) question 5. (a) (defun enigma (x) (and (not (null x)) (or (null (car x)) (enigma (cdr x)) ) ) ) ; to judge whether there is a nil in x (b) (defun myster…
(2014.1写于CSDN的文章) 最近对lisp非常感兴趣,因此在google中搜索了“common lisp install windows”, 想装一个开发环境玩玩. 第一条结果就是 “Getting going with modern Common Lisp on Windows” : http://www.mohiji.org/2011/01/31/modern-common-lisp-on-windows/ 就按这篇文章安装,大部分过程都非常顺利(我的系统正好是win7!),除了两个…
Lisp Hackers: Interviews with 100x More Productive Programmers Posted on June 26th, 2013 Lisp Hackers: Interviews with 100x More Productive Programmers, by Vsevolod Dyomkin, is available for free in multiple formats from Leanpub. Let Over Lambda Post…
Difference between LET and LET* in Common LISP LET Parallel binding which means the bindings come to life at the same time and they do not shadow each other. The values are effective inside LET and they are undefined outside LET. Just like local…
Scheme and Common Lisp use different names for some of the basic system functions. Many Lisp programs can be translated to the other dialect simply by changing these names (or by providing the existing names as macros or functions). Compatibility pac…
