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发表于 2010-5-11 13:19:52
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用list吧' K D4 g( W) g# P
patches-own [wealth rank]' w8 c5 t% _, H4 V/ J- V0 z
to setup/ }6 B% f4 R/ i' K
ca
( p0 h0 h& k/ s3 e; L J5 \6 Y ask patches [set wealth random 100 set pcolor green ]3 }' @& A% }* n. o5 U1 W. z
end$ I+ C/ m; W, A- C8 m' R; D% C' p& v
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to go, ~6 S, F @. V* G G% v, L$ X
let mylist1 []
/ r# }# d4 x7 V( t9 L- _ set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches- Y4 W& _7 B: L' n
let mylist2 []6 f) Z& g, H/ A6 {1 m+ n
set mylist2 n-values count patches [? + 1]* X' _1 S$ _4 V: o
; V* e6 O6 V. q ( foreach mylist1 mylist2# T7 n/ V8 w* |" W+ y
[, Z3 {; Z3 s, j, Q8 p. ~8 x1 c
ask ?1[ set rank ?2]
6 D: m9 h9 \9 r! k0 F show [rank] of ?1; E( s; _& ?' Q) L; H6 \" w
3 a6 q' x) U* k. N/ q
]& a D4 W4 r. W
)
" w6 w" ?$ m0 A1 X let mylist3 []9 E& e; B7 o2 A' M& z. a; r% [" Y
4 ?$ Y" h+ B I) s set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
" f( D; u" H4 @: d& H0 u w8 U2 C show count patches3 ?9 _& Z' }, c- x q% q
show mylist1 5 a) x5 `0 d6 w$ i
show mylist37 K8 M2 d8 ?( R, s- K# h
end
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这时的mylist1 和mylist3 应该是一样的 |
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