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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 & ^2 p% N1 R6 Z8 f9 S8 C4 ]2 n
to make-turtles
+ ]7 Z% b( N7 k' m6 q; Q ask patch 0 0 [
2 K6 G0 |& \' s. p create-initial-turtles num-random-min "random-min" violet
" ~* z1 u* Q. D3 Q/ N2 }0 O9 D create-initial-turtles num-random "random" brown2 C! @2 j+ u; Y
create-initial-turtles num-random-away "random-away" pink% I5 m# l. l' ]2 l9 m3 f `
create-initial-turtles num-open-min "open-min" blue, P8 u, [$ u B" ]- v
create-initial-turtles num-open-min-max "open-min-max" orange ]2 ^2 H$ I% w& g* B* p2 p' ]
set-common-variables
# S) b( P" u* L0 n" v: eend4 ]$ p& X$ N# l* x0 [
4 q+ h* R* {8 B% u& \, ?) \to create-initial-turtles [n turtle-rule turtle-color]
7 o9 Z: h& q! X3 Q- {9 \, e ask n-of n (patches in-radius initial-radius with [not any? turtles-here])( R3 U# ^2 J$ c0 d1 I: H a9 c2 d/ Z
[ sprout 14 O' a8 ]0 {" `" i3 v2 C
[ set rule turtle-rule
7 y: k/ i+ w" f+ R) p set color turtle-color ] ]! i1 V$ g/ z+ |% c( c
end
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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
