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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 3 W) c" }1 F7 R0 U* D* I7 o; R
to make-turtles; v; m9 [& p, C7 ^ V9 Z/ s
ask patch 0 0 [! j% p6 B; ~7 v& |" C+ w3 v
create-initial-turtles num-random-min "random-min" violet( m+ m$ h" y7 w# ]
create-initial-turtles num-random "random" brown
; h+ q; m6 Z+ |6 \7 F2 N7 W* N/ W create-initial-turtles num-random-away "random-away" pink
$ }2 d% x6 y# j9 I3 L, P create-initial-turtles num-open-min "open-min" blue
* K4 s! X5 N; s) V create-initial-turtles num-open-min-max "open-min-max" orange ]. f, m6 _: p" ~- j& h5 O: m
set-common-variables9 F* E) J8 H7 q! S% M- F( F
end7 m ?4 m- z1 W" }, z) k, n
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to create-initial-turtles [n turtle-rule turtle-color]0 l: u4 O1 I& J3 a5 {; G [- S, V2 n
ask n-of n (patches in-radius initial-radius with [not any? turtles-here])8 g8 ], w$ W/ p9 D) a
[ sprout 1
0 Z! M5 Q) I, V& P3 d/ H [ set rule turtle-rule
_% u' @) V5 z6 q4 N set color turtle-color ] ]0 U, ~2 p. A+ g+ a# B) ]- }
end
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[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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