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发表于 2010-5-11 13:19:52
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用list吧 M# s% ~# L/ A
patches-own [wealth rank]
# |4 ?4 u3 v Y/ Q+ h# Bto setup
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( k6 R' o% J, x% L; ^& D1 Q" L$ K ask patches [set wealth random 100 set pcolor green ]
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to go/ J5 L0 } C9 g; H# r+ c1 S+ N3 t
let mylist1 []3 x& C( { c6 y4 {! g R
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
' M+ w. f" `3 W g& L let mylist2 []
& ]6 ?' _' A9 h) r# R8 c! l( ~ set mylist2 n-values count patches [? + 1]! ]1 ^ ?) |+ g& w: \ q; l o! R
# T, B5 ^6 \) D$ o9 J. C ( foreach mylist1 mylist24 K% n% v0 n' Z) P& P6 N0 O) a
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ask ?1[ set rank ?2]5 j8 I- e) v/ l2 ?1 S
show [rank] of ?1
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" i' z# G/ w k7 h) l8 I let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
; f/ z0 H3 Z+ m/ E) m/ }+ g show count patches: g9 P! z2 e5 d/ m9 R
show mylist1 4 n9 b/ s- L! Y2 u; m
show mylist3
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这时的mylist1 和mylist3 应该是一样的 |
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