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发表于 2010-5-11 13:19:52
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用list吧
9 S4 C8 P7 P8 X' C( M2 m) O2 M+ b, g. ~patches-own [wealth rank]9 y" E) S7 U' j0 S8 Y* r$ \
to setup
1 ^" V1 M) g, S) x! m* p2 w) ?6 ] ca: ] K' [6 f9 T# q" [. t
ask patches [set wealth random 100 set pcolor green ]
% K3 f3 | ^" C3 ]* Mend- D" N0 U% y* M: G% K* F
4 G' B% U3 T1 V4 ]1 j* `5 V7 Cto go
* M0 D" Q2 ^- h let mylist1 []: M) S, A; s, N' o
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
2 |2 P+ l. z8 ?( {. w. u let mylist2 []5 d {6 i! O3 g' w7 `
set mylist2 n-values count patches [? + 1] e6 T2 Y a: a* P$ r; i5 X( i
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( foreach mylist1 mylist2, t, e; K" b' T0 X. o: K
[5 Q( b1 A( M2 v3 m2 s( m/ U
ask ?1[ set rank ?2]
) ]: v1 @3 J) X, o1 M; i show [rank] of ?14 D0 R e1 y* ]0 b' [* f! l- [
: L) ]) X4 ?. b
]
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let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
; ]. d7 E, ~: n3 t show count patches
& i9 I ]+ M9 P V# a7 w* F show mylist1 4 `# Z7 h$ R1 u/ Y
show mylist38 Z6 Y Q: \/ v7 H% E( y
end# }" E! M) d: y5 `3 H# A& |2 D$ G9 V
7 n+ k. d3 |4 I; ?这时的mylist1 和mylist3 应该是一样的 |
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