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5仿真币
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
: [- v# g# ?9 i3 n# @to make-turtles/ @4 P4 ?, k: T2 }
ask patch 0 0 [
, `; i. x" h3 |2 ~# u. f" N create-initial-turtles num-random-min "random-min" violet2 `7 _: x/ ]7 ^* X) t- v+ s
create-initial-turtles num-random "random" brown6 r- v% Z6 V( g( x
create-initial-turtles num-random-away "random-away" pink
1 z# H. L: x( ]9 o! G) Q create-initial-turtles num-open-min "open-min" blue; l7 [( X& V3 B1 d' R/ B a
create-initial-turtles num-open-min-max "open-min-max" orange ]
3 e: V, i# @+ H4 z2 j/ ^ o set-common-variables
^6 V# O" x% a: o aend
0 O2 x( {& ^3 {5 X) P' Z& a2 h& Z1 D# X& z* A- n
to create-initial-turtles [n turtle-rule turtle-color]
5 X( [8 j0 P. M3 P" W, B( y0 @ ask n-of n (patches in-radius initial-radius with [not any? turtles-here])6 ^6 k Q- J" d$ R/ o
[ sprout 1
. F9 E9 |7 e' k( ^9 j$ v [ set rule turtle-rule
3 b) x2 e4 r; ]0 V set color turtle-color ] ]
& D' X! |, {+ S( Oend
) q/ ]- D8 B" R4 `* i7 ?
' t( m. P" v% i W[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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