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我的程序如下：
" O; Q5 O1 u' t& q1 H2 Vbreed [dogs dog]
; @% T; t2 }2 d E$ Gbreed [cats cat]0 y4 h2 }$ @, n2 c3 E9 D, L; X
breed [cows cow]( T( W0 R+ Y! W1 K8 o9 |% t
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to setup! |- ~" Y8 p7 q% V$ I H0 a% n
clear-all
% F7 ?% U0 j3 y0 m set-default-shape dogs "dog"2 k: _ k) H' w( Y$ c, B
set-default-shape cats "cat"
# P" b* v7 g0 d set-default-shape cows "cow"( h6 R, I. L7 y3 Z; D' E
ask patch 0 1 [ sprout-dogs 1 ] a. t4 T7 S3 k: C! r0 V! g$ c; Z
ask patch 0 0 [ sprout-cats 1 ]
- A# _2 C3 c! C ask patch 0 -1 [ sprout-cows 1 ]
2 B7 W5 y: b: ]0 {" ^end$ y4 ?, m% s1 ]* l3 L: K+ B1 v
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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：* u5 ~1 B5 u* O9 m) p
error while observer running SET-DEFAULT-SHAPE in procedure SETUP! a+ S! f, z& p# B' a) y
"dog" is not a currently defined turtle shape# o8 V# v( U4 r( M6 G& _2 E
(halted running of setup); U9 x" u1 B( P* t% W
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7 ~) ^/ S, Q+ a. `. ^5 z4 i; k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
