急急！！请高手帮一下修改一个粗糙度的程序，谢谢1
(defun c:rough(/ v1 v2 p0 p1 p10 p2 p3 h h1 s a1 alf alf1))<BR> (setq v1 (getvar"cmdecho"))<BR> (setq v2 (getvar"blipmode"))<BR> (setvar"cmdecho"0)<BR> (setq p0 (getpoint"插入点："))<BR> (setq p10 (osnap p0"\n粗糙度数值的字高〈3.5〉:"))<BR> (if (not h) (setq h 3.5)<BR> (setq h1(* h 1.61658))<BR> (if p10)<BR>(progn<BR> (setq alf1 (angle p10 p0))<BR> (setq p0 p10)<BR> (setq alf(- alf(* 0.5 pi)))<BR>)<BR>(progn<BR> (setq alf(getangle p0"\n旋转角〈0〉："))<BR> (if (not alf) (setq alf 0.0))<BR>)<BR>)<BR>(setq al (+ alf (/ pi3)))<BR>(setq p1 (polar p0 a1 (* 2 h1)))<BR>(setq p2 (polar p0 a1 h1)<BR>(setq a1 (+ alf(/ pi 1.5)))<BR>(setq p3 (polar p9 a1 h1))<BR>(setq a1 (+ alf (* 0.5 pi)))<BR>(setq p4 (polar p0 a1 (* 1.4 h1)))<BR>(setq s(getstring"\n输入表面粗糙度的值〈6.3〉："))<BR>(if (= 0 (strlen s)) (setq s"6.3"))<BR>(setq alf (/ (* alf 180) pi))<BR>(setq alf (cond ((and (> alf 90) (<= alf 270)) (- alf 180))<BR>((> alf 270) (- alf 360))<BR>((= alf - 90)90)<BR>(t alf)<BR>)<BR>)<BR>(setvar"blipmode" 0)<BR>(if (=s "0")<BR>(progn<BR>(setq p4(polar p0 a1 (* 0.93333 h)))<BR>(command "line" p1 p0 p3"")<BR>(command "circle" p4 (* 0.46666 h))<BR>)<BR>(progn<BR>(command "line" p2 p3 p0 p1"")<BR>(if (>(strlen s) 3)<BR>(setq p4(polar p4 (+ a1 (* 0.5 pi)) (* 0.4 h)))<BR>)<BR>(command "text" "m" p4 h alf s)<BR>)<BR>)<BR>(setvar "cmdecho" v1)<BR>(setvar "blipmode" v2)<BR>(princ)<BR>)<BR>
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