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我的程序如下：
$ p! |0 Q$ U/ m" f# _breed [dogs dog]7 z# h Y- p5 T1 A. G$ c
breed [cats cat]& }! h! o, T4 O! O ^( e
breed [cows cow]
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) h; u. M5 B- t1 }7 c, \to setup
6 ], Q3 l( c# v1 e clear-all
9 z# \, P. |9 ~; s; b set-default-shape dogs "dog"
. Q8 |2 o3 v R set-default-shape cats "cat"
8 z/ Z* z+ k/ p# \5 v set-default-shape cows "cow"3 G- J. m. Q' o! u; w7 X* o0 _! D
ask patch 0 1 [ sprout-dogs 1 ]- @1 s3 i# e/ Z& e- ]
ask patch 0 0 [ sprout-cats 1 ]
1 `1 A4 L# j$ }' X0 r ask patch 0 -1 [ sprout-cows 1 ]- t8 [2 V5 X, F1 q- i8 r$ w
end
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1 i; _7 S8 B8 O5 H+ V( V3 H7 i# q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 O! E" m! g" k, Z% ~- eerror while observer running SET-DEFAULT-SHAPE in procedure SETUP8 T7 w' u: J" }# U |" o% p. h
"dog" is not a currently defined turtle shape) E7 v1 |& S+ @3 P
(halted running of setup)
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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
