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发表于 2010-5-11 13:19:52
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用list吧
) D4 z2 u. [, G/ @6 p3 _/ mpatches-own [wealth rank]7 b; [* {$ H3 B, p
to setup5 c4 E! J, m4 U- J; q9 V
ca2 i" ^7 S! F8 [- X, o! n; B3 q4 {
ask patches [set wealth random 100 set pcolor green ]& y% E% U, H+ r- s- ` `
end7 ^; P$ S" Y: Y& `! S$ X& P
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to go
: P- h$ l1 e0 v; Y- u& b+ y let mylist1 []
0 ]/ N9 ]* Q0 r set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
" H3 u+ _1 J0 t- _& ] let mylist2 []/ A& |, m. C' W/ e! e N N
set mylist2 n-values count patches [? + 1]
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( foreach mylist1 mylist2
$ t9 H2 r% t; v+ f4 ^1 X$ ~ [7 B' b& S$ V i: k
ask ?1[ set rank ?2]2 `' a* t5 j. |- A% x( Y. i
show [rank] of ?18 ]5 k! l, F6 r0 E
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5 n k( K; r/ C$ c5 s& u1 n" v/ O2 z )
/ r8 ^% D# T, ]3 M8 K0 A3 e9 g- v% O let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
0 Z9 [: O8 g7 y! u s' ^% J" R3 X show count patches4 f. B/ Q7 s! v& e) O6 x
show mylist1 0 N% Y. x& j& u* @
show mylist39 P% q7 |/ p2 y
end
4 v u. D) c1 N7 X- P" T' v$ h' x- e" j( Z
这时的mylist1 和mylist3 应该是一样的 |
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