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
1 x( T  C; z7 B# ?to make-turtles
$ D! Y) w; m1 T/ Y4 b  X    ask patch 0 0 [
6 J1 g8 T  V4 `/ m% K; ]      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
# s' Y$ _( |" k8 C! N. o      create-initial-turtles num-open-min     "open-min"     blue
: W3 C' a5 J6 R7 \* Z/ A$ [6 `      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
3 f, }3 N* k5 A' B8 b2 ?end
; h/ h2 A. B" y
% V9 h2 k" h5 r% i; ato create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
' }- `/ L  a! G! t    [ set rule turtle-rule
      set color turtle-color ] ]
' @* w$ \! K2 vend

  a; w: T7 i* J; Y[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]