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
" K1 L9 o, h- [" b/ s    ask patch 0 0 [
" |6 k: L( W4 l' O9 Z      create-initial-turtles num-random-min   "random-min"   violet
. A' r  D" O, D/ k3 r( G5 \      create-initial-turtles num-random       "random"       brown
: y9 o3 }3 ~' t5 [; s! K      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
, q! E: J0 T& {$ F      create-initial-turtles num-open-min-max "open-min-max" orange ]
; {" B, {1 {7 S  set-common-variables
end

to create-initial-turtles [n turtle-rule turtle-color]
& H# ~2 B7 [2 U  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
; s5 b! ?1 c- Y8 l: i  _: E    [ set rule turtle-rule
      set color turtle-color ] ]
end

! ?* `1 K3 ?$ d: ?  n* r( ^! T[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]