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发表于 2010-5-11 13:19:52
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用list吧, z8 Z+ h# l/ [5 S& a5 l3 l0 _
patches-own [wealth rank]3 o; k2 }% o+ G
to setup1 d2 Q+ \- k) P! r
ca: w" L8 T+ E9 Z* M
ask patches [set wealth random 100 set pcolor green ]" d: q" g& ^" f g
end
( |2 ]+ |) S5 G. Y6 ~$ z, H* v: ?0 c% ~" R5 c
to go4 t, \& E& S& M1 t! }6 H
let mylist1 []2 p9 u8 f, m: E Y
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
7 ~+ C c8 H7 P6 f, i let mylist2 []$ i- H' b0 |& z8 q5 b
set mylist2 n-values count patches [? + 1]
; J7 Z3 ]- g6 j, N+ z% d. w
d: e P% _* O! I u! S; _ ( foreach mylist1 mylist2. V. n3 k0 m4 y; @9 e/ B, E) o+ E
[
3 r* A% X$ E, z& t+ {0 E ask ?1[ set rank ?2]
' L9 a9 G% {* a8 {8 m4 k5 f4 P show [rank] of ?1/ I! v. {' l! M) V" X$ W/ \
5 Q7 G7 L8 B$ r: q- @ ]- {3 {5 O s4 ~. }
)
" A% v( S8 b7 G let mylist3 []8 |7 W) p" t" z5 D
0 e2 V6 t7 ]( H! M" d' t5 q" N set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
$ N* ~8 c* n. X& Z# D1 ? show count patches
3 X V5 `5 y; f6 V, C+ \ show mylist1 6 N: W7 {) Y% T3 O
show mylist3* d, ?1 G0 p" r7 i% ~. u7 d
end2 s, A2 u# @/ t& h2 H
2 s5 Y5 w" `" c/ ?这时的mylist1 和mylist3 应该是一样的 |
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