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发表于 2010-5-11 13:19:52
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用list吧- l: i3 B7 |8 \. a' J
patches-own [wealth rank]
+ f- h3 H: G4 ?0 ?2 {to setup8 _" k- _$ k" |& x" a' f
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ask patches [set wealth random 100 set pcolor green ]" w7 j3 P! N% c' I9 h
end
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6 c# T1 V5 G# B6 r% M let mylist1 []! ~& ^ [2 Q" i5 A/ Y" c6 r" O' a
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches' }, X7 |. h$ ^, _; a
let mylist2 []; b' d# F- Y$ H
set mylist2 n-values count patches [? + 1]+ k9 ?( D; k) V6 h! F
% Y& X1 v) d3 Q8 k$ U9 D ( foreach mylist1 mylist27 M1 t' A8 K1 P/ T; ] W7 o' q( Z
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ask ?1[ set rank ?2] d& k6 p1 p7 a$ f9 q
show [rank] of ?15 a) A; l8 b+ I( A- Y# L
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( m: p" k% A/ c) n let mylist3 []
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches+ P3 E. q0 B+ ]' q8 D7 B: v
show count patches
5 a; w( E$ v) W' B; j show mylist1
8 w. S& A) X3 a3 m5 m( M* A- w show mylist3& b! H" }6 b3 i& f$ P: e; G: o
end
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这时的mylist1 和mylist3 应该是一样的 |
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