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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
% W1 r$ V2 q' Pto make-turtles5 L' N6 | a9 q$ _
ask patch 0 0 [
& p3 m' @) D9 _$ b: C4 P create-initial-turtles num-random-min "random-min" violet
. x5 O% q a: [0 W- H create-initial-turtles num-random "random" brown9 D |* z$ ^7 K# ]! P9 }& z
create-initial-turtles num-random-away "random-away" pink! A: `) J5 v8 k# m- P/ t( K4 A3 q
create-initial-turtles num-open-min "open-min" blue# C7 N! U' B; D7 v
create-initial-turtles num-open-min-max "open-min-max" orange ]
/ Y- E5 j4 G$ R/ c: e. E+ v: h- ~ set-common-variables
9 Q' A2 J, V/ c9 {( C% q: fend
+ [2 h* v* G- L% d
! j8 d( h& D, S d& X! q- p+ W/ z% |to create-initial-turtles [n turtle-rule turtle-color]# z2 l; j. L% M% v. T' y
ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
$ D2 D7 v" |8 k C5 C [ sprout 1! b& d% U9 r4 D% O
[ set rule turtle-rule
& R# Z b5 L3 a0 a2 u set color turtle-color ] ]
$ j8 v S2 a2 M8 L: eend& s9 P5 e. P0 S4 p; f; v
5 F) ~0 p, x( y; I4 F" W' b[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ] |
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发表于 2008-4-30 10:05:49
