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我的程序如下：
K, B9 ~8 C7 o$ Xbreed [dogs dog]: g0 v2 x/ A) h y1 Q6 x
breed [cats cat]' P- S/ g7 d# _- b; C3 X
breed [cows cow]
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# j) W0 B( x7 h K. v5 H) Z& jto setup
" l- D! K, W* x/ F% ^/ W L clear-all+ z$ y1 I# [7 p5 L
set-default-shape dogs "dog"
) b( t: x% R8 I9 t set-default-shape cats "cat"8 i: [# \* E) y# H( \8 e8 O. j
set-default-shape cows "cow"
, a' X% R& ~5 Y$ C& m ask patch 0 1 [ sprout-dogs 1 ]5 U- X6 W4 _/ \. E! P
ask patch 0 0 [ sprout-cats 1 ]7 z0 u' J6 N" `- N" C) g, |
ask patch 0 -1 [ sprout-cows 1 ]7 N6 V8 P* R; [* y
end; ]( m% Y' @- }# Y4 B$ Y0 m
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$ p9 V$ R( e% V3 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：
. c5 v2 { l* {% ^. w: [, Q1 \7 }error while observer running SET-DEFAULT-SHAPE in procedure SETUP+ X! h5 f C3 F4 m! p8 ]( m! H
"dog" is not a currently defined turtle shape) @: B' |5 ?/ k, F" v) x& [( p0 H
(halted running of setup). L4 M$ Q: Z& n" p& y( Z, ]+ V q* i* H9 Q
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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
