AutoCAD LISP绘制楼梯，控制方向和阶数高度等，代码如下。
(defun c:test()
(setvar "cmdecho" 0)
(setq nn (getint "\n阶数<5>："))
(if (null nn) (setq nn 5))
(setq pt1 (getpoint "\n第一点："))
(setq pt2 (getpoint "\n第二点："))
(setq ww (distance pt1 pt2))
(setq str_hh (strcat "\n高度<" (rtos ww 2) ">:"))
(setq hh (getdist pt1 str_hh))
(if (null hh) (setq hh ww))
(setq ang (angle pt1 pt2))
(setq ptbas pt2)
(command "pline" pt1 ptbas)
(repeat nn
(setq ptbas (polar ptbas (+ ang (/ pi 2)) (/ hh nn)))
(command ptbas)
(setq ptbas (polar ptbas (+ ang pi) (/ ww nn)))
(command ptbas)
)
(command "c")
(prin1)
)
代码完。