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发表于 2010-5-11 13:19:52
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用list吧* y" E, V" e/ `# Y8 y. [ k
patches-own [wealth rank]" e5 M) l3 n$ k4 j& g% c: I0 ]$ D
to setup( G5 Y( L: H$ o3 O: P" P/ P
ca9 f: r4 t. t: w ?. t
ask patches [set wealth random 100 set pcolor green ]9 K( u" W1 a8 B. D1 s. y8 {
end
! X2 r$ s: T# X8 c4 O' @$ B |, E
q" v: p' U, ^6 {! u5 W. Cto go, _( H) l. J0 L0 w6 P: I
let mylist1 []( q! W* P2 U, |7 L
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches! I6 R" o* q0 P+ m6 `+ n
let mylist2 [] h0 X8 k% _" E6 ~ d6 ^% F7 E
set mylist2 n-values count patches [? + 1]
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( foreach mylist1 mylist2
9 ~8 i& A& a/ D1 _4 ^1 R [4 o. y. w- z7 z- D. I S
ask ?1[ set rank ?2]" n1 F+ U2 H0 q6 Y" J. t" C7 n# J
show [rank] of ?1- U+ l+ D7 d( r
& D) c: m2 R( `1 T2 U j- i
]6 M @6 o$ O- i, }0 h
)
y3 @8 s5 A9 |# C$ i6 H let mylist3 []7 B; J8 X7 C' M0 @3 d& e% L: V
6 u/ W; p3 r$ h6 K# p$ e
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches
0 F+ f8 \' J. S2 r show count patches
2 Q* h' w0 Z _& O: E4 G show mylist1 6 S3 \2 E1 |( c7 `& A
show mylist37 g! Z; ?" p. `7 _; i) f5 e
end( h+ }1 u# p: L& A9 {
: F9 K3 P! }5 }) A6 y, u6 P这时的mylist1 和mylist3 应该是一样的 |
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