# m" u7 c# e" M8 r o# Q% ]这是教程里的一道题* K) l# R" I6 {3 B) V
(defun c:lt()
# s3 y; T) [( g5 F(setvar "cmdecho" 0)
1 Q2 x7 |4 z) D; \, [. S(setq p1 (getpoint "\n插入点"))
* h+ h/ H& t5 x2 O6 s& f(setq w (getreal "\n梯宽"))
4 h/ b; w2 F+ o- P* _(setq h (getreal "\n梯高"))) m/ z# i$ p6 d* n! V
(setq n (getint "\n级数"))
) @6 P" o/ D/ J2 K- N. u(setq p2 (polar p1 0 w))
" l, q- [3 Z0 \(setq p3 (polar p2 (/ pi 2) h))
t* c) ~2 ?' j5 s% O% Q) m
8 X) {9 a/ q* V. B! x( y(command "line" p1 p2 p3 "")5 p% V _. l. A+ e( d: y4 i- K1 V5 i
8 \" b( t) ]' }/ V
(setq w1 (/ w n))
/ ? g0 m7 y" n2 W% L- a2 l& {. j. o(setq h1 (/ h n))
% \( K) i0 u/ X$ M l(setq pa p1)/ j+ a8 A n0 f0 g/ R' Z
(repeat n
+ a4 h0 K3 v/ n9 m+ j- h% N3 ^(setq pb (polar pa (/ pi 2) h1))/ J4 p! {+ j4 h1 H
(setq pc (polar pb 0 w1)): M2 Y& E9 N6 i1 S0 [
(command "line" pa pb pc "")
( M) {3 G; \, Z3 Q$ s(setq pa pc)
; N1 s2 [) `7 M2 j9 X' m(prin1)))4 K2 s/ k9 @$ w" c; [
(prompt "\n命令:lt")
+ J# t) Y# e( [8 \* E; W2 m# t
$ u9 l; ~! t' G( [; h[ 本帖最后由 leimc 于 2007-12-19 16:55 编辑 ] |