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
      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
7 m& [% D/ T2 K5 H) @8 o1 T0 {      create-initial-turtles num-open-min-max "open-min-max" orange ]
& K. O& P4 o; T& I2 F6 }0 P  set-common-variables
end
- {/ m, K7 J7 ^- b( q1 M5 P1 _
to create-initial-turtles [n turtle-rule turtle-color]
/ M( D& e/ N3 ?) R  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
3 V9 o/ S% v# |2 t    [ set rule turtle-rule
  F7 n0 c3 C" x/ R      set color turtle-color ] ]
end
, r+ @/ E1 N8 `3 z7 J' t
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]