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
0 ?. z+ ]. c) G; y% u6 _' Sto make-turtles
    ask patch 0 0 [
) h1 Y% }* U# T! \      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
5 n) ]9 B$ ]  S: N- a$ D& |      create-initial-turtles num-random-away  "random-away"  pink
& F! I; r2 |1 @" q- ]      create-initial-turtles num-open-min     "open-min"     blue
      create-initial-turtles num-open-min-max "open-min-max" orange ]
! h" e/ }: I1 N* y" g1 J! i  set-common-variables
3 ]) f8 W3 z4 f5 b8 fend

# l9 ~+ y! T/ Gto create-initial-turtles [n turtle-rule turtle-color]
) l: u1 K' E  P+ V  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
2 S  \; B! d5 V+ |' z  [ sprout 1
    [ set rule turtle-rule
2 j1 ?  k/ c0 w0 {      set color turtle-color ] ]
) _  Z+ V( M6 P# V' {5 gend
1 G: D5 Q5 \8 W2 [! C
/ c! x8 @8 F$ u[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]