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发表于 2010-5-11 13:19:52
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用list吧 V' f: S# a1 Y# r- M- v2 t0 E8 L* f
patches-own [wealth rank]8 E: F; }3 r3 J5 ^6 U
to setup: v4 n, w* I& E# A6 v
ca6 v( e5 S m" [3 k9 K& l; V. ?9 p
ask patches [set wealth random 100 set pcolor green ]3 n, B% t! P) x) s/ f: o
end
! P5 t0 W* \$ ?6 Z; V
2 c+ t7 }: C% n6 v6 Dto go; U6 N8 N& m0 i: t6 w: [
let mylist1 []+ o8 M0 l F1 j$ G9 o' p/ j* C3 ~
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
+ V- h; b$ Z4 z; C+ `0 o9 q let mylist2 []4 a! N- R6 f8 b/ z* ^
set mylist2 n-values count patches [? + 1]% N1 V! P8 X: L: ]
& B9 v0 m) H8 Y# w" x% A" J
( foreach mylist1 mylist2
3 @8 E2 ^* ^: z [; N9 `% E/ A) s+ P8 C
ask ?1[ set rank ?2]
( E/ ^! l6 N8 n/ h" Z show [rank] of ?1# Z5 @: ` a Q& P
2 `- L0 |/ y. m ]
' _8 [- _6 Z- l; R; w )
+ I' f2 u; {/ J8 N Q) M+ e let mylist3 []
. k) {* m6 s& x: U4 P & j4 U- x; F; ^% \1 ?& m0 \5 c+ O7 v7 q
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches; m; W6 l# @1 h, k* w
show count patches' Q: p, t$ y# M5 D1 r) V
show mylist1
+ N6 ^, |: {* l) y show mylist3
- e3 k# F3 ^, F' w/ Z. f( w8 B, Nend- p+ k6 T6 d" m" r% G, {, i
( s N; R8 k5 d! ]; d; z
这时的mylist1 和mylist3 应该是一样的 |
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