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发表于 2010-5-11 13:19:52
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用list吧' t) G, H* t8 Q& w; W/ m
patches-own [wealth rank]" ?. J3 d: ^' S' R9 ~
to setup5 x! C5 Y3 G# h
ca7 |6 c1 X: A- e$ ^
ask patches [set wealth random 100 set pcolor green ] Z) w% m# A' |4 R' _
end
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to go
, I E, L; o# N0 p: ]- w let mylist1 []$ f6 q$ N1 a1 w/ K7 S) O& E
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches/ ^1 f$ D* W V8 E8 ^) a
let mylist2 []& ~% @- t/ u2 ?* p: M' P
set mylist2 n-values count patches [? + 1]! B5 E" J6 B r9 ]9 i
0 I: w5 N p1 h2 h+ ^5 y4 n ( foreach mylist1 mylist21 J) Q% ^! R6 ~: W6 q8 }
[ d9 [8 u& K4 O% G" _! C- j/ [6 P
ask ?1[ set rank ?2]8 e6 t* U) E X+ d& W% M) c9 K
show [rank] of ?15 Z2 J4 \, e. A4 A
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]
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let mylist3 []
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. ^$ Z$ s" y; ^7 n set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches- G5 X) F5 C) j
show count patches
+ c0 P6 E7 _0 K) o show mylist1
`! }4 { e' N0 E \ show mylist30 V; V3 ?; D) w% h+ u& g3 ~ v
end, ^6 T) ?0 E+ @( R' Z ]
- b" z) m6 g. [. I这时的mylist1 和mylist3 应该是一样的 |
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