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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
* T- g4 x( p! B3 C ?" ~9 j) Jto make-turtles
( O- l- d- T1 T ask patch 0 0 [' g8 L+ \) R; U& b1 r: }
create-initial-turtles num-random-min "random-min" violet
) }, W9 s7 M/ X+ ? j* ^& ? create-initial-turtles num-random "random" brown
; F, w1 I5 J- L5 ^ create-initial-turtles num-random-away "random-away" pink, p3 j6 b, Y# e1 j9 E/ h# H0 C) I0 a
create-initial-turtles num-open-min "open-min" blue
. R" a0 ]( a/ s/ s! Q* k create-initial-turtles num-open-min-max "open-min-max" orange ]7 \) y6 g, X8 a6 B
set-common-variables2 Y; c2 l) z( s% Z& f5 a' Z
end
5 ?6 y! J" n* \$ p# i1 G( s: f8 B: B0 s5 ?( S+ \2 E' Y% T9 e
to create-initial-turtles [n turtle-rule turtle-color]
& P* j0 b7 D) L# n4 T# v$ Q9 F ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
3 D$ s9 [* o" @ v [ sprout 1
! @. p; C* V, b/ ` [ set rule turtle-rule
" o2 V3 ]: h0 L7 W, e! P* k, J set color turtle-color ] ]
' v9 K) w3 y* M( j, T% N! n6 _end% O2 Y- I. q) h" s+ A+ n7 l) N- n
( k! b4 c* i, P/ k5 F- s8 a- D1 Z, F
[ 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
