( n; ?: d7 W5 `/ |这是教程里的一道题
$ x$ L0 l- ?4 ^(defun c:lt()
% G: u5 m- d0 f: j e" C(setvar "cmdecho" 0)
- \, @# A/ W, {' x* W ~4 e8 J(setq p1 (getpoint "\n插入点"))
5 e( t! E+ d# {8 _ m8 ](setq w (getreal "\n梯宽"))
9 e2 B$ D7 k+ f4 L% I d(setq h (getreal "\n梯高"))
5 O0 S |5 S' X8 W4 Z' _(setq n (getint "\n级数"))
6 g$ Y& f: J( F5 q(setq p2 (polar p1 0 w)); i. S* v* L1 D2 f+ q; E4 ^* t4 q
(setq p3 (polar p2 (/ pi 2) h))
y+ p0 C& s& V' J8 J% C1 y+ p" h: M7 `' d3 [( K0 V# I
(command "line" p1 p2 p3 "")# `" q1 G( s+ r6 j( V0 V4 \
0 }# O. e' E) ~/ D* @3 r$ W
(setq w1 (/ w n))/ A: |& I) h: g8 B, Y
(setq h1 (/ h n))* r; {* e1 m" B# a' W8 Q# X: B
(setq pa p1)) l: A9 N! c( ?: P0 c4 o [$ j
(repeat n
) l M3 h( @7 y; D+ k! {(setq pb (polar pa (/ pi 2) h1))
4 _* X$ C& @% z, A' @) B' H(setq pc (polar pb 0 w1))
, q. J2 B; L( |! F/ E# D(command "line" pa pb pc ""): C9 f( k. ^5 w- S9 _1 O
(setq pa pc)
! f# \ F3 _3 d+ \) v6 t(prin1)))& V& e o- p9 m$ p; B& q
(prompt "\n命令：lt")
+ }8 c5 K% M) a' G) K; ?5 q1 V0 b% ?4 {( F$ l3 l3 U4 }& Y
[ 本帖最后由 leimc 于 2007-12-19 16:55 编辑 ] |
发表于 2007-12-19 16:39
发表于 2007-12-19 16:44
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