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发表于 2010-5-11 13:19:52
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用list吧
8 `9 e2 _, ^9 B! ipatches-own [wealth rank]
+ Y3 F( O5 ^6 ~2 ]/ i7 Uto setup
7 h% k+ a% t9 D& n+ B ca
) _3 c2 ]* ]8 d; M) | ask patches [set wealth random 100 set pcolor green ]
. }& ?, Y7 T% n0 i# cend
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to go
+ l5 d& T R" i- G Y1 j let mylist1 []" p' z; g2 l: W
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches$ v( b; v! L$ N5 @; ^, l# h2 l2 \
let mylist2 []' k) F* L! U' I: Y' D2 [9 B) b
set mylist2 n-values count patches [? + 1]
& Q: ?( p) J9 L8 U & q& C5 f3 U+ E. C/ ]$ k
( foreach mylist1 mylist28 r$ \6 [% B- I* P" V3 W# s
[
& d3 ^5 \4 c- L, c9 J ask ?1[ set rank ?2]
' ^5 {- d, ?9 R show [rank] of ?1/ U5 {( A4 I. I3 Q3 x
) _' {4 i" k% O% A3 T) |' R ], U" G X& }& k
)1 I, n/ _, P: m2 u d
let mylist3 []) d6 N, S" O9 h# P
- w% W# n d K+ n% h' e
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
) J! _, E/ F* p9 p4 `7 k' J: B4 m show count patches5 F9 M7 k- b4 a& W6 \% D- V
show mylist1 & Y% R% g( @2 n1 L) Q5 X. x
show mylist3& i9 D9 m! h9 l. n
end
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. i$ `2 z/ X9 r: L这时的mylist1 和mylist3 应该是一样的 |
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