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我的程序如下：
9 e# u; Z1 Y) Zbreed [dogs dog]+ p5 ^5 O; a3 Q) ?7 G
breed [cats cat]* `& l! t& g' s$ S5 c, g8 {3 D% S
breed [cows cow]) f, i9 R9 w+ h) v; _ G# t+ W
/ V! e; U0 f: e S( I1 Rto setup! y# j' l5 n2 J* S7 |2 C
clear-all) V1 b- ?( O9 T5 w0 y, M
set-default-shape dogs "dog"
7 Z/ E: P7 B. V$ }. e set-default-shape cats "cat"/ x- B/ @) Q2 a' r: ~7 z; u
set-default-shape cows "cow"
* D, V; b$ Q9 L5 `0 Z0 A ask patch 0 1 [ sprout-dogs 1 ]
- H7 q4 b8 P/ f( g! n' ^/ L5 \8 s ask patch 0 0 [ sprout-cats 1 ]
) K4 N; }6 U. ` ask patch 0 -1 [ sprout-cows 1 ]
% c5 A0 S1 I& ?3 w8 T3 vend/ W' U- F* {) _6 Q" z2 R. Y
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9 N o( X# ^6 Z3 W7 M6 O5 H
这个是netlogo自带模型库里的模型中的程序，我新建文件再将其输入却提示错误：2 H" x0 d' c; ?6 \2 N
error while observer running SET-DEFAULT-SHAPE in procedure SETUP
% l5 _6 u+ F+ q |4 T8 j8 j" E$ |- w"dog" is not a currently defined turtle shape* B6 Q) z- C/ X0 C$ ]7 U
(halted running of setup)0 x& w4 _) U5 V7 m& e: z7 m4 M
9 ~4 F) i: t" N
! R' ?- N$ ~1 h* ?5 P我用的版本是4.0.4 请大虾们指教下。thanks！ |
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发表于 2009-11-18 10:33:10
