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发表于 2010-5-11 13:19:52
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用list吧, j# K8 c5 @, }$ z- N
patches-own [wealth rank]
# z( ^: U% M4 O# }to setup
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0 j% r/ V( h% i! w ask patches [set wealth random 100 set pcolor green ]
+ ^/ F& I! o, Q7 ~; Xend; ]$ m$ ^) s4 @
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to go+ C+ g( D" D# F
let mylist1 []. m- }3 E& s# u& U. }
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches& j0 r! u7 L; _. i" r6 D% g
let mylist2 []( I5 f2 l3 W7 F: o
set mylist2 n-values count patches [? + 1]
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( foreach mylist1 mylist2
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ask ?1[ set rank ?2]
' p, Y- j- G% F6 H show [rank] of ?14 A0 }5 [6 Q2 c& P, j/ n0 I
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)
B" f$ P4 N4 x# o% ~) z; [ let mylist3 []0 Z: C: X/ t7 c( Z0 j& f! [
. [3 ]5 z* C8 Q9 s set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
' u" ]2 K% W. W e! q9 J$ V# e show count patches
. P3 n$ W$ x. z1 f6 T( \5 M G' c. Y show mylist1 - |$ h* f1 ~1 `5 l/ Q/ m
show mylist3 D2 }4 }8 q2 H7 ^4 Z% J8 g
end4 C) i3 W( h% t9 o( }: W
- f1 y. @. f. P$ V. ?7 n+ h: J这时的mylist1 和mylist3 应该是一样的 |
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