提高程序Lisp运行速度的方法[转] test lisp

1、变量名称不超过六位字符;

2、能用+1函数的不用(+ x 1),同理-1函数;

3、能在循环外运算的移到循环外;

4、能用整数的不用实数;

5、能用cons的不用append;

6、能一次计算出来不计算两次;

7、能通过函数功能过滤得到选择集的不用循环筛选;

8、能使用默认值的用默认值;

9、能通过系统变量改变绘图系统的不用命令改变;

10、能用+的不用*,能用*的不用/;

 

 

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posted @ 2014-05-24 20:49  BingBox  阅读(667)  评论(0编辑  收藏  举报