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
      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 ]
) O. `2 u# D( r- @& m% e1 |  set-common-variables
+ \" Q+ E2 F5 P; Send
3 ^/ {$ V! ?3 X( j) O0 W9 }, d
/ F- ~& c7 W" Z, H3 gto create-initial-turtles [n turtle-rule turtle-color]
* C6 l  U3 J: }8 p) S  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
    [ set rule turtle-rule
8 c5 k4 J/ u" B  @( ~      set color turtle-color ] ]
end
8 y+ P4 ]2 [9 [* z- j6 H9 m
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]