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发表于 2010-5-11 13:19:52
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用list吧* \- {: I& y& e% v
patches-own [wealth rank]) m4 d5 c# e- a) F3 a
to setup
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$ A2 w: L$ {4 B1 D. H6 C ask patches [set wealth random 100 set pcolor green ]1 Z( T( P$ b: }, f
end
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to go! X; P4 Y0 Z# p( P! O$ s
let mylist1 []2 Z) }- O' K* s+ x* i' J
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
9 ]- m, z" U7 ?+ J- D( _ let mylist2 []' R8 F/ b. R( Z$ |& ~9 G
set mylist2 n-values count patches [? + 1]
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2 S' T+ c8 |3 J ( foreach mylist1 mylist2; T5 l9 |8 a6 v8 f/ @, l) I3 a
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ask ?1[ set rank ?2]
& s8 b' |: X _( e7 `, R show [rank] of ?1
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)
R4 e" a: O" s# B. y let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches- v6 V/ `3 D( ~0 \ ?, c: N/ Z7 ~
show count patches' n) S+ @; B$ D9 C$ d1 b- c9 N
show mylist1
8 Y }& w1 ]! |: a7 s5 w show mylist3% s5 b: V7 E( u3 Q. _2 S
end
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这时的mylist1 和mylist3 应该是一样的 |
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