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5仿真币
下面的语句中ask patch和create-initial-turtles 后面接的[ ]中的语句是什么含义，其中非原语的都是定义的全局或者外部变量。语法有点奇怪，谁能帮我解释一下吗？多谢 / a- ^2 @3 H+ ?5 G6 y( ]
to make-turtles6 C( O4 z5 F# ^6 \
ask patch 0 0 [
1 {; v* i. ~% A; u5 I create-initial-turtles num-random-min "random-min" violet
( ~" m% U6 Y; P& ~: j7 j9 c create-initial-turtles num-random "random" brown. v, n1 @4 \2 A0 q) }
create-initial-turtles num-random-away "random-away" pink4 ~7 V; e4 }/ v" U4 m' }
create-initial-turtles num-open-min "open-min" blue
* n6 l1 e8 q% B( r+ f create-initial-turtles num-open-min-max "open-min-max" orange ]
4 u1 H) T [3 w- M3 B% a! a set-common-variables, I4 f9 Z3 F8 F" N
end9 l3 N# M1 D1 W6 d3 T* _
' r/ E: I- ?0 ?# h; Yto create-initial-turtles [n turtle-rule turtle-color]! u0 u, k) f- z% m. h: J- q
ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
; n; C- T" ~: A R6 G7 g [ sprout 1" p0 C+ V% K& I3 e0 f
[ set rule turtle-rule3 l6 t9 O o: [. K7 P0 D
set color turtle-color ] ]
& G# B ^ l s3 I1 uend {6 w8 |' f7 U- Z- _
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[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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发表于 2008-4-30 10:05:49
