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发表于 2010-5-11 13:19:52
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用list吧. }/ m# G5 p2 I# ]. ]
patches-own [wealth rank]
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ask patches [set wealth random 100 set pcolor green ]# U2 m" s7 K6 Y* c$ B( ?/ `
end
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let mylist1 []' i8 Y( j {$ i% K- G3 A$ K
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches0 R, @7 }5 r1 U2 U! q
let mylist2 []
9 f4 r6 t; u6 C8 l! ?- {( o set mylist2 n-values count patches [? + 1]% W' t5 f8 D2 Z+ J6 O3 E
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( foreach mylist1 mylist2
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4 @. I8 t2 O' b; a: q7 B3 c5 D2 q, x ask ?1[ set rank ?2]1 U4 t4 Z8 D$ `. w9 L
show [rank] of ?12 o' d. j* q4 ]" i1 G
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]
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let mylist3 []1 [* S4 P9 c% ^8 c
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches' [6 C) m6 L% a; h
show count patches
3 I: S! c& w" s: H- b/ t show mylist1
R- {1 F6 o1 _+ }) c show mylist3
$ p: p2 H% }; g' s* Dend
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* R+ X. e/ \9 [/ R- T/ S% L这时的mylist1 和mylist3 应该是一样的 |
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