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
# R  _& x4 `' O+ g8 @    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
# o# \5 y, E# r  ~7 }      create-initial-turtles num-random       "random"       brown
! S1 s" i) E4 a! W  R9 \; m2 x      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
0 ]! n, i. B+ R      create-initial-turtles num-open-min-max "open-min-max" orange ]
4 N. L8 E+ [+ T; F+ G  set-common-variables
% ~- \6 }8 `  h2 o, U4 a: m/ X% ~end

" E, B& O3 ?6 y( |( K) Tto create-initial-turtles [n turtle-rule turtle-color]
4 s: j  w9 a, Q  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

: k4 @. @* L- [' g# h[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]