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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
: `3 q+ N% @ l0 g- Pto make-turtles
/ F) X& y _. ^7 u( V" ~ ask patch 0 0 [
1 j% E) n% s3 c3 u# O create-initial-turtles num-random-min "random-min" violet
; F1 r( z9 B! B- t. u* | create-initial-turtles num-random "random" brown
1 i, q4 I# @, g, y create-initial-turtles num-random-away "random-away" pink- [4 {4 n" w3 s
create-initial-turtles num-open-min "open-min" blue, a' ]7 h/ q0 t9 u# z7 t
create-initial-turtles num-open-min-max "open-min-max" orange ]
/ W o" T+ U6 r! [/ y set-common-variables
/ r" E% @3 c1 u# ~7 f& S1 aend7 E# e$ S& {1 Q( N
9 v. A3 z/ D/ V( |+ R3 Q6 |
to create-initial-turtles [n turtle-rule turtle-color]
' H( W) V9 t; P2 l/ v( Y ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
r' Q# f3 M& w1 B7 ^) K' ?0 | [ sprout 14 s0 c* f5 S. x. [% N) X$ J& F
[ set rule turtle-rule
! ]& L- B* o9 D' v* X) S. [ set color turtle-color ] ]
# {- b0 J& {0 Z1 ]- I9 Xend
$ f3 X# G* O/ u+ i2 P4 R- P3 D' Z: i4 S
[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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