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发表于 2010-5-11 13:19:52
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用list吧 z/ F8 `- t& w& i
patches-own [wealth rank]! t8 i# V, I x* L: `7 B
to setup3 k( b0 [/ L. u$ ]; J
ca
' `* D# m; z0 E$ z/ H& h& ]8 ~ ask patches [set wealth random 100 set pcolor green ]0 p: r c6 r3 J, M8 f5 {3 t$ O
end) p$ `; V% c7 C1 f9 V, H1 f
/ P) i% Q X! j' ]# ~to go
/ Z! O$ N" t3 c0 w& I8 j let mylist1 []
! }. J) v$ D# s0 { set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
7 n% L4 v6 l4 v) t9 |2 k let mylist2 []
! ~( u$ k8 w0 Z8 _1 e set mylist2 n-values count patches [? + 1]6 ^8 D5 ]2 f' J& a0 [2 |2 A# ^
: u N8 Z5 h% ] H( ^ ( foreach mylist1 mylist2
! a1 d3 C+ x! w9 w4 p$ n+ r [
: M2 @ T; b9 a) l; t1 O ask ?1[ set rank ?2]
- g6 X, r1 ^1 Q9 {% R' c* V; E; x show [rank] of ?11 F' k+ ~! K! Z; C
8 a# T2 _, d; D- P) D( C/ x
]
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let mylist3 []9 @" @3 v7 N* p* F9 U
\) x' k- {- p& C$ z% F set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
3 y* Z9 x/ P) l show count patches% y W4 \+ S: k& w5 t
show mylist1
3 Z2 u6 B7 x8 S* Q. _- H. S1 U show mylist3
' {9 M2 [, M2 G m7 Bend% p4 G; M* G5 Q) t. G; |; G; d) u
, m! s; m1 o8 G( }
这时的mylist1 和mylist3 应该是一样的 |
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