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发表于 2010-5-11 13:19:52
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用list吧0 ?" e* e& M* j4 W+ ~
patches-own [wealth rank]
7 f1 E8 V# f; C1 Uto setup( C7 C2 Q6 j% Q7 N, j
ca/ ~5 q$ ]2 |9 B! ]4 h
ask patches [set wealth random 100 set pcolor green ]
7 a8 h/ V! R( p5 \7 H ]! xend: h3 Q, c( b+ J% Z
4 I( @+ u4 y5 P3 T/ Z( x$ `; d7 [
to go
, {" ]2 {4 c( G1 D/ i6 s# K9 v1 B! _ let mylist1 []
4 }; w+ x. e5 D& e* I. { set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches" @4 p' n- V# p# b' l& ^! c: |
let mylist2 []
+ V8 o Z! M) @ set mylist2 n-values count patches [? + 1]% p7 L: d9 \* E7 F3 T* i) |
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( foreach mylist1 mylist2
# i' @9 w: V) i! b) U9 Q [+ e1 l% w1 }2 u
ask ?1[ set rank ?2]" A4 ^: V" Y- d
show [rank] of ?1
# T+ x/ Y; G4 y0 F( g# I7 H' M' U* ]
' e( S% Y& k. i2 S$ u/ L9 ^; v ]
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& a+ w) | ~! N- ?1 y let mylist3 []
$ v5 _8 D* _. v9 I4 Q ; J& `$ l) C) j
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
# s4 J: B$ s! k show count patches
3 p$ G9 y. D8 \' }; K( `: q* N show mylist1 % H% P+ x% [5 Z% d5 a/ ]8 W% |4 {
show mylist3
* Q% H7 C( ~2 Z5 H; nend" W$ Y1 }/ f+ y) s1 E7 h3 a1 o
^. P1 t6 i5 e0 q# G
这时的mylist1 和mylist3 应该是一样的 |
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