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
( V; G6 }8 X  E# r    ask patch 0 0 [
& w. a, `2 `  g+ _/ w' n* t# X. H0 T      create-initial-turtles num-random-min   "random-min"   violet
) j, q) O: Q( @' l; Q- X/ ?3 {      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
# S* p; q  g5 {0 e+ O/ ?! }      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
end
# g* D: t4 s( J' \
to create-initial-turtles [n turtle-rule turtle-color]
2 {8 Q; b% |5 Z* I  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
: r+ I) B- r  T4 w% A  [ sprout 1
    [ set rule turtle-rule
3 J2 `2 ?8 d/ }% v. i) _# D. y( F      set color turtle-color ] ]
end

( T& s: ]4 V4 ~2 E/ d[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]