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我的程序如下：6 I# J; x. p( _0 \$ B
breed [dogs dog]% V$ Z* F! l9 c) b" f2 t
breed [cats cat]
1 B" ^" Q) e i j3 A2 @ m4 G+ d1 ebreed [cows cow]% r6 \3 {. C; B" b$ A
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to setup
% o! C, n: H& b5 H clear-all2 i' |7 O7 w3 J! ^% G0 \' |
set-default-shape dogs "dog"" [& Y& b4 H# i5 Q' x6 {0 N$ a
set-default-shape cats "cat": z/ \$ l1 m' ^2 P! R, o
set-default-shape cows "cow"/ R. C2 f1 ?( A9 J7 T8 `7 t
ask patch 0 1 [ sprout-dogs 1 ]* S- s: h/ U8 ?* T: Z% k
ask patch 0 0 [ sprout-cats 1 ]) \1 b7 L) z3 w. j5 X5 c
ask patch 0 -1 [ sprout-cows 1 ]
& b' Y# ]+ x- p5 N0 Wend
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$ X7 I. b# E6 c! \/ {' Y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：# t# z1 V/ Z, H* q
error while observer running SET-DEFAULT-SHAPE in procedure SETUP3 l- T* t9 P7 k" l) R4 W
"dog" is not a currently defined turtle shape9 \- k% [& _; Q# k" T& X
(halted running of setup)
{! b1 w2 }( |" M/ X% e' S! D3 A. K; @5 n
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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
