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
    ask patch 0 0 [
      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
) e3 {% o- j& |! k0 M+ J: T      create-initial-turtles num-random-away  "random-away"  pink
# p! y( V' _8 e: g      create-initial-turtles num-open-min     "open-min"     blue
3 k% f% W" p1 C5 ^+ ~- @& W( s8 o! k      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
  ?7 H' Y; b/ z+ u# z8 }+ p3 P. Mend
4 s+ v) Z' Y7 g5 e  U& N8 _+ [/ b7 I
7 s8 b1 _) p, r; Dto create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
    [ set rule turtle-rule
      set color turtle-color ] ]
, j! g! q& [; J  }3 l  A- ^' W* N, ^end
( a: c8 h& H, |. f4 c( N* U% a
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]