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发表于 2010-5-11 13:19:52
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用list吧- Y. k: U7 u* A1 a. a! n+ X3 |
patches-own [wealth rank]7 i, b$ c" T4 i* _
to setup" ~2 y: ^/ h- `' y9 r
ca
- y( e! g5 @+ @0 \0 P8 B( o ask patches [set wealth random 100 set pcolor green ]6 K! o8 q; H( N$ \
end
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to go
9 G1 d4 t7 E! _) V m. h let mylist1 []+ t8 _& \' Z" Y! {9 H
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
5 A, H. f+ L% k- B+ [9 K; y let mylist2 []
: S" o) U2 E# j/ S set mylist2 n-values count patches [? + 1]
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8 `( Q3 Z3 a, ~1 v ( foreach mylist1 mylist2
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7 p: ]0 J$ A1 G2 [/ z ask ?1[ set rank ?2]( T& @/ _. {6 ?
show [rank] of ?1
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let mylist3 [] H1 [1 E8 Q: j- ^2 O" D" Y" t& n
; ?2 o3 }9 C3 t. j/ T; t
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches* T3 Z7 B4 ^) f0 u% C$ a/ ?
show count patches& X5 \: ?4 Z" j0 W! y4 q( k
show mylist1 # u" \7 F' e; T) S/ g. t
show mylist3' ~' r4 G. y2 N4 G: x; s
end
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这时的mylist1 和mylist3 应该是一样的 |
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