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发表于 2010-5-11 13:19:52
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用list吧* L7 i* M7 q, F
patches-own [wealth rank]! E3 E9 ]& q: Z8 h* i1 l! G9 P9 R
to setup
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0 Q0 T; q* j0 Q! T6 k5 T; N! { ask patches [set wealth random 100 set pcolor green ]
+ o# p, q* }' Z0 u& m( Cend
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6 l/ U4 l- {2 `# Pto go
" ~* d: p6 o6 e, W8 H, g% } let mylist1 []. d9 t$ t* M- Q& m* [. `
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches/ I; J) R& D' T/ [- N
let mylist2 []; z# \! B, `; j& e) u
set mylist2 n-values count patches [? + 1]7 H) n9 _1 C0 _! t4 f- A9 r3 h
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( foreach mylist1 mylist2
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ask ?1[ set rank ?2]
, g T$ l* @; m% k show [rank] of ?1
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]
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" \* S' X1 C. b let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches/ j4 E8 |% I+ B) M5 x. c7 L
show count patches
3 x9 c1 i3 }$ C$ B& A show mylist1 ; o$ W: b4 L; ]) p
show mylist3
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$ f! D" W# ]1 ]8 h这时的mylist1 和mylist3 应该是一样的 |
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