|
|
发表于 2010-5-11 13:19:52
|
显示全部楼层
用list吧2 y+ G% U6 z9 T2 [+ W; b) w% k
patches-own [wealth rank]
/ s6 f" p: s3 X: t! h# h/ ~to setup
1 H) u1 x+ |0 j. J5 a$ n" X ca, a# e" H+ z! q3 y+ j
ask patches [set wealth random 100 set pcolor green ]" x! ?+ c; U6 E
end% }" H( q7 G* g2 s) d; Y! b/ g
& k! G+ ^1 I3 L' S) {to go6 J: {: }' `9 y; D: l
let mylist1 []% ?6 I/ V, c2 X1 f% u7 Q
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
( z w$ o4 C) ~$ Z/ b let mylist2 []" |, W& c- F$ S
set mylist2 n-values count patches [? + 1]
# b! U Y8 U7 K% q$ ?4 G ; |/ L8 y0 g" D5 L0 Y1 k! T
( foreach mylist1 mylist29 \' @0 h: _' `! I
[7 C# |. I8 q: y; u6 |
ask ?1[ set rank ?2]
8 @4 H7 ^: a x% o7 z show [rank] of ?1
( Z7 ^. l8 L* j( k ; [1 j7 A* ]2 N' F& o
]
+ m+ Y+ S, ]5 H4 b2 C6 t )
' y. `/ P" V e( Z0 v% G8 j* ~ let mylist3 []: V$ I: G6 ?9 L0 i5 }8 s0 @
% g% f5 e% X# G
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches2 b* Y: S8 C+ O O7 E6 z9 g
show count patches
: d' N6 ~3 ~/ X1 l& g: }1 n show mylist1 1 V6 v4 Y3 B9 K/ H0 ^7 [# j
show mylist34 T$ d- ^( d- K0 S" m( @' X
end7 d. D8 a7 U9 I. `
4 w% H+ |9 J( y% O& [% q4 U8 G这时的mylist1 和mylist3 应该是一样的 |
|