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发表于 2010-5-11 13:19:52
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用list吧" E, ~1 q& B1 P
patches-own [wealth rank]+ Y# R1 r3 i" u- l
to setup9 W( l# m6 a2 f8 h1 S
ca. j5 e, b1 l4 p2 k# G: m" o4 _- V
ask patches [set wealth random 100 set pcolor green ]
+ f. T/ a2 f8 @% Tend
- s: X) T0 |0 @+ n7 [3 O5 ^; R$ @2 l9 r8 _: E7 z: _
to go7 n+ \$ o) _& ~# o
let mylist1 []+ p+ e ]% X2 Z
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches9 |& _ i& E" Q4 Z' X4 F
let mylist2 []5 P8 m. u& ^3 w& d9 Z: v( ^5 v
set mylist2 n-values count patches [? + 1]
; v/ v7 Z3 P& T2 l% a6 _! G" k ) f; X; W6 g( N5 ]6 }* z
( foreach mylist1 mylist2
1 E* m3 P8 ? m4 t+ N2 p! @( [ [
/ B4 F; l# s: n5 g ask ?1[ set rank ?2]
+ |% \# \, b; @3 i1 ^- m1 c& ] show [rank] of ?1! t* S, C- \6 Y! y
5 i6 H" b% C) E0 g8 I4 B/ `, W7 j
]
, [% s) t8 S0 K" A )
9 e/ g2 F; q ?. Z. b0 U let mylist3 []" Z7 C- g$ i8 W) M
( t5 k( H' Y4 L
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
7 a9 y: K! s& w* x* P& ~6 t6 g! ~ show count patches& H( A5 F @0 K2 \+ @6 w9 U
show mylist1 " I4 W/ R) o, k
show mylist3; s/ d4 P% T( s m* T
end! Z: k: o4 u$ h) x+ g
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这时的mylist1 和mylist3 应该是一样的 |
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