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我的程序如下：! b- ^$ p/ Z2 t. U
breed [dogs dog]+ k: n) V. @8 G
breed [cats cat]+ X! o9 R4 B" u! y
breed [cows cow]. Q1 o) ?* o( F
7 A" y; g [% }; G+ Q9 ?to setup
; p$ i& T( Y, X. z1 c; S+ R clear-all5 T6 C* r( E5 i. o- p8 L
set-default-shape dogs "dog"1 c" B' q/ }: d0 _
set-default-shape cats "cat"7 [/ l7 [: E; s7 \0 a$ x
set-default-shape cows "cow"' T+ _- U- C, A E) V/ Q* o
ask patch 0 1 [ sprout-dogs 1 ]' p" }6 \0 ^0 e. w# P
ask patch 0 0 [ sprout-cats 1 ]
/ d* v* Y" ?% Z! F% R* Y ask patch 0 -1 [ sprout-cows 1 ]
2 E) N/ h3 d6 B) a, j) I6 Eend( C7 y" J: k- j: }% P3 p
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3 r) k# o! @3 O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：, `0 q9 R% w5 a/ b, ~( \/ }+ z
error while observer running SET-DEFAULT-SHAPE in procedure SETUP2 S( a& S( D, h1 @6 m
"dog" is not a currently defined turtle shape
. U9 n2 s4 l4 C' w7 M% ^/ z(halted running of setup)& V9 U5 [" K, I! w7 P: D0 {7 `2 r
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5 C7 I. k5 _ U, O; o
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
