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
2 K/ H6 R/ R! G. c% y0 c    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
- u9 }* Q  r( y" F0 V      create-initial-turtles num-random       "random"       brown
, G5 @9 u- l0 f- c- F8 u      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
end

2 k: F/ a6 K$ ito create-initial-turtles [n turtle-rule turtle-color]
$ G' e* w& \( O. Y4 [+ J0 a  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
    [ set rule turtle-rule
      set color turtle-color ] ]
end
' N! E9 @% f1 R% K$ I' ^5 S
6 @" k! m9 ]3 b2 v[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]