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发表于 2010-5-11 13:19:52
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用list吧
/ n' S3 `9 b0 N7 ypatches-own [wealth rank]* T% ~7 b* i0 D1 g* X
to setup
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ask patches [set wealth random 100 set pcolor green ]& K& h" J+ z3 L3 x: k
end
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to go& E/ X7 A+ |& d# e9 a2 k1 l0 `% x
let mylist1 []
8 o2 N2 W5 J- g9 r# Q8 v) ] set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches: t% o8 @* ?" f* \
let mylist2 []
4 j* Z7 }$ G; p set mylist2 n-values count patches [? + 1]3 A; [# o. u9 I; g
) a1 p2 g6 H6 b. f; J2 D& | ( foreach mylist1 mylist2
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+ \* R7 O/ y6 u# l) n: p ask ?1[ set rank ?2]8 M! x: t9 E6 U- ^6 y
show [rank] of ?1
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)
5 b E5 W( G' l7 z4 ^+ j/ f let mylist3 []' C; m7 f! @3 X: z @
K' l- \+ c, n7 I! ? set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches- V0 Q8 @1 U N# D- T0 _% g Q m
show count patches
2 l8 o; M. W' \- O+ _: t v show mylist1
+ _4 K z- ]* ?/ s/ E1 A show mylist3
6 Z$ j! f' ^4 k" c, m: Nend
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这时的mylist1 和mylist3 应该是一样的 |
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