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
( z8 G8 ], q( ~1 l) j! G    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
) w9 k4 [( C; u- S3 |7 C      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
5 T$ T5 V4 |7 T0 t      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
( l/ I/ H  X- W% J6 m4 [- Fend
9 ~- a) _3 K& s7 a# m
to create-initial-turtles [n turtle-rule turtle-color]
( N) g4 i# d# P; u  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
, j4 r/ w& B' n: y! J" I+ e    [ set rule turtle-rule
      set color turtle-color ] ]
& T% `  I) t6 Y1 `end
  w  c: D9 e, l: f2 v; ]
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]