语法看不懂，能帮忙解释一下吗？

etamina

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
to make-turtles
    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
      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 ]
  set-common-variables
end

to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
0 Z! M5 Q) I, V& P3 d/ H    [ set rule turtle-rule
  _% u' @) V5 z6 q4 N      set color turtle-color ] ]
end
  p4 W4 q. e6 v: }1 s# |
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]