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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 ' K4 X- ^ ^& Y# ~1 N- I8 \4 w; }
to make-turtles% p. s2 F9 l( e
ask patch 0 0 [* `5 c" a6 r' m6 V
create-initial-turtles num-random-min "random-min" violet
/ e5 ~: @' `! P" A7 T% r create-initial-turtles num-random "random" brown
: L: c( o9 Q! u# J create-initial-turtles num-random-away "random-away" pink5 s0 J/ v$ ~% m8 m. z, e
create-initial-turtles num-open-min "open-min" blue0 m, u5 ~+ O7 y. m
create-initial-turtles num-open-min-max "open-min-max" orange ]
7 l! M a$ H: G# p+ |8 M3 b D3 u set-common-variables! Q7 X. B2 l. Q: ]3 @. Y7 d8 H
end
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6 h r3 q& M ?6 c7 T& ~! xto create-initial-turtles [n turtle-rule turtle-color]
% ?% {1 t, j! F1 P8 n6 j ask n-of n (patches in-radius initial-radius with [not any? turtles-here])0 E" j3 L9 K' ?& K; p3 C# [
[ sprout 1
, y4 v8 e, n5 s) o$ ` [ set rule turtle-rule& I" m" R/ d) g, x& F/ E4 f
set color turtle-color ] ]
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! j) b0 \8 L& c$ ^[ 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
