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
7 D" `/ t$ R; h3 W    ask patch 0 0 [
! J9 c; q/ u/ [+ s1 Q* F      create-initial-turtles num-random-min   "random-min"   violet
# \5 `  ?$ F0 a1 U- N      create-initial-turtles num-random       "random"       brown
/ z' t* F# V) B# L      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
      create-initial-turtles num-open-min-max "open-min-max" orange ]
" k+ S! `3 f) u9 t  set-common-variables
, {+ o7 V" l+ Qend
/ t/ W: [3 c, f" m5 g2 Q
to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
$ C! t& N# e. J8 D+ h+ o  [ sprout 1
3 B6 Y  x3 o5 X" f# _: Q1 G) k    [ set rule turtle-rule
      set color turtle-color ] ]
end

[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]