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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 $ Y+ E" Z: ~& @* h9 s) X+ ?* Z5 L. H
to make-turtles1 G$ \7 a3 | t$ P4 m
ask patch 0 0 [
" I0 j* Z8 f# E create-initial-turtles num-random-min "random-min" violet
4 e' j1 m- `& c# Q create-initial-turtles num-random "random" brown
L; P8 T/ S; o/ c create-initial-turtles num-random-away "random-away" pink5 p% |5 x1 c- L: S" O! J# ~8 p
create-initial-turtles num-open-min "open-min" blue3 f- ?, A- u- F0 @5 n
create-initial-turtles num-open-min-max "open-min-max" orange ]0 Y; U1 V# C! J& B- ?- l
set-common-variables
- O) ~, v. D5 M* S) Iend! y" Y& k9 Q% L2 Y d6 o
9 K5 P6 B9 A* R( I/ g, B" _5 ]
to create-initial-turtles [n turtle-rule turtle-color]$ a2 U' I' i3 S' X8 L
ask n-of n (patches in-radius initial-radius with [not any? turtles-here])* ?) O& i q0 n3 x
[ sprout 1
" I7 G, j6 r0 p [ set rule turtle-rule$ P& l- K9 s# t; F' g/ n/ d4 j
set color turtle-color ] ]
9 t/ [# N3 c# wend9 E* u( F- \1 h: E) H
- K% n3 [' O' r* U% }' i( @[ 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
