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我的程序如下：
; J/ t* p( e. Ybreed [dogs dog]2 P0 o8 u! G0 r2 p
breed [cats cat]+ }- C. N6 v4 ?* v5 T9 A% f' J
breed [cows cow]# Z3 q) q1 w" i. c8 S( j {
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to setup& n* \' i- G% m* K/ Q
clear-all# E# Y# x. Q2 A, q
set-default-shape dogs "dog"
- a: L1 q* `9 P, E set-default-shape cats "cat"4 F4 R( ]/ Q; }9 ?4 u' ?1 S4 I- X
set-default-shape cows "cow"1 {, V/ J8 w2 S5 x
ask patch 0 1 [ sprout-dogs 1 ]- l: T8 m- |8 o
ask patch 0 0 [ sprout-cats 1 ]
2 o. D. X" F* T( y. Z ask patch 0 -1 [ sprout-cows 1 ]
" Z3 ~& Z$ o2 l% \ v: oend
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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：$ r" L# D" c+ H* ]6 V
error while observer running SET-DEFAULT-SHAPE in procedure SETUP2 Z" {& s2 X$ Y/ _4 ^) T) h" b
"dog" is not a currently defined turtle shape, V! ]9 U8 @- ^* G/ `$ b
(halted running of setup)) h! K' l% U4 _
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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
