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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
5 D( S z# e; F1 ?* A4 i* o% {to make-turtles. E0 _. |% f" L. P3 \
ask patch 0 0 [
" l" i. m* c" y6 u( D- H# C create-initial-turtles num-random-min "random-min" violet' s3 M. p( R. O- u$ l; Y' U
create-initial-turtles num-random "random" brown
2 J5 s0 L& t4 j6 D V6 T create-initial-turtles num-random-away "random-away" pink, o# Y" l7 z! s* L! n9 @
create-initial-turtles num-open-min "open-min" blue
1 n1 X7 c- s" `" R9 ]( B+ G create-initial-turtles num-open-min-max "open-min-max" orange ]
7 I, q' {/ h: t set-common-variables
" J2 a" f1 G1 kend) i" B8 h. V: F: n& g. b/ T
7 Y# p6 Z# k1 ?- [: j' M! K! ?9 Ito create-initial-turtles [n turtle-rule turtle-color]8 @0 c2 g: ]( J6 J3 z
ask n-of n (patches in-radius initial-radius with [not any? turtles-here]), n- b- {8 k4 `' U0 _
[ sprout 1
: I# k+ E3 q9 G2 r9 p q [ set rule turtle-rule
1 D: `9 ~0 C( n set color turtle-color ] ]
$ K: Q, |1 r$ d& {% Cend
0 ]: Y. w& l3 { A' ]
1 n" [ Q A1 g[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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