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发表于 2010-5-11 13:19:52
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用list吧8 Y: z% g% F2 G2 N/ u/ X/ B. T o1 T
patches-own [wealth rank]
7 R* N4 G' Q0 i x* z+ n8 ato setup
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ask patches [set wealth random 100 set pcolor green ]$ Z, s3 X$ C! ~' h; f
end8 j' ^, v; e' C5 Y
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to go
0 o$ H6 A4 p m2 o# E let mylist1 []( `" X% o3 r. p w( ` T* W6 f3 m
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches, q( X4 t* o( m5 k
let mylist2 []: @/ C, D% n3 J9 P! J& \
set mylist2 n-values count patches [? + 1]
( ^# n; }, m: T7 e" ]0 l % _: Q$ q N. F
( foreach mylist1 mylist2 P; F2 o/ J1 u- g, @% n3 `5 g
[
2 \' T+ Y! r! q l- D ask ?1[ set rank ?2]
4 E `5 x% ]8 k4 \' j( h' x show [rank] of ?1
) x2 S! |) j) t! l. Z3 t" w+ @ ( v& g0 c1 v' ^1 B+ H, C
]
0 g( y- A0 }. _8 f: e )
" U: n$ W$ U' j# r3 q0 _4 T4 m let mylist3 []) A) d) S/ z8 }9 F' p& g1 A
* A3 m- y+ \) I/ q m set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches( e1 H/ m, H. j( E, k/ @
show count patches2 m7 e$ n8 a* h9 {3 ^4 r; ~
show mylist1 6 t7 i) Z: |! M# L) E( s7 |* f
show mylist3: A4 \/ h9 k' S$ t9 ]+ I( K
end! Y, o* `% r3 n+ ~" E
) y" M* y% G0 A, i( S- P; v: s3 J这时的mylist1 和mylist3 应该是一样的 |
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