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发表于 2010-5-11 13:19:52
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用list吧# q6 Q% e7 [/ |* B1 B
patches-own [wealth rank]$ ]6 G7 S( v9 L6 W2 B8 ]& T. J
to setup
' q3 F9 P6 W9 I ca
8 b* a" `1 [3 j+ g% ~3 ]6 F ask patches [set wealth random 100 set pcolor green ]# x" U) y3 |' B: S) O, y: V
end1 B! i+ m* s2 \; K. h# l+ c
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to go( c; E' ^8 [$ M+ [% o* v7 m' V
let mylist1 []
6 t* ^5 P6 Y$ r+ Q! U, [6 A set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches/ C, i' E7 u8 t0 M5 s$ v
let mylist2 []& z* N+ d) \. M
set mylist2 n-values count patches [? + 1]
% _" Q3 x$ ]' V: Z( p( L 7 u& F" J* a) ~# S
( foreach mylist1 mylist2+ f3 M' P/ n- P
[
6 o( ~, R5 Z0 r( P v% d' D* b ask ?1[ set rank ?2]
2 o- e v1 f9 m- F9 t& a$ A show [rank] of ?1
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let mylist3 []0 O: P& z3 t- ^" J* q! b/ l; C
1 _ v. {; i: y- w* v/ x set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches3 ~4 Y/ o# T6 w% v$ m
show count patches- M5 b7 s; A! w0 k
show mylist1
/ c5 h: w6 \7 s6 s* } T' k show mylist3
* W N! u; v% @! `end
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! \: a8 C' U/ q: c5 X% E+ g) d这时的mylist1 和mylist3 应该是一样的 |
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