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发表于 2010-5-11 13:19:52
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用list吧/ V2 p# d! q5 q2 Q
patches-own [wealth rank], N7 Y& ~, \# H% |
to setup5 T# E2 |- K& }, D0 k# E
ca
- M0 f1 y8 D5 i. L ask patches [set wealth random 100 set pcolor green ]
7 n; B6 v4 X3 Cend
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let mylist1 []5 y4 |5 i8 Y. b- p% f) z
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches `4 ~% m' L% b- P5 n" ?$ D1 W
let mylist2 []
, C! i0 ?* w5 |' ]" ^ set mylist2 n-values count patches [? + 1]2 a9 D/ @" G5 ~" t& l2 J7 [
. G! ?5 ^2 p5 k ( foreach mylist1 mylist2
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ask ?1[ set rank ?2]/ Z1 Q7 N, ^/ {1 x) K) ~7 _
show [rank] of ?1
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; \* \, M8 I& y$ Y$ [5 F let mylist3 []
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# G! f: A6 {/ g+ j set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
$ p4 V/ B4 \! k, {, r, \ show count patches) E& y& x H! Z3 d
show mylist1 / a/ x2 X2 d# e# i) P
show mylist3" I/ p# r! p6 ^' |: U
end
: }$ r5 h$ {. f9 [5 }; N4 [2 c
) m2 t" W1 S- Y" @这时的mylist1 和mylist3 应该是一样的 |
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