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发表于 2010-5-11 13:19:52
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用list吧
0 f$ T9 N5 A' f L. M' C x; g9 Ypatches-own [wealth rank]5 }9 C% j; V8 ?
to setup
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ask patches [set wealth random 100 set pcolor green ]
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to go. Q) }! L; D4 ]! r$ X9 s8 q
let mylist1 []
. R$ K5 }$ U1 o; z3 i set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
; V' w$ u# m" H3 P$ j b0 B/ p) m let mylist2 []; [, B, t! }4 K/ Z+ P. G
set mylist2 n-values count patches [? + 1]4 x, J7 l) n3 d- P$ k4 w5 m
/ ^8 C$ C% w& t2 | ( foreach mylist1 mylist2% f( _/ Q3 s$ r2 {4 i
[
; j$ n7 ^. e. i. l/ S& m; ~ ask ?1[ set rank ?2]: t' ~6 n! p3 \9 l" _0 B3 {
show [rank] of ?10 R: G5 f/ ~& [8 R/ ^ m; [
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)
; e8 N9 D' [, R9 O' e0 E+ r let mylist3 []' e/ X* R+ e0 S3 b) i e
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
3 v* \$ B v4 q8 q! K show count patches
* A: n6 I9 j1 G) Q/ h show mylist1
; q' M+ }. U8 c% { show mylist31 K& N8 W; U' N; W9 `
end
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6 |2 X; s! {3 U% r$ E4 G/ _; P7 q这时的mylist1 和mylist3 应该是一样的 |
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