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发表于 2010-5-11 13:19:52
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用list吧
( x" Y9 q1 N4 q4 Mpatches-own [wealth rank]% L# \ }& [( l
to setup3 I% {$ e) g9 J* ^9 O8 ]
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ask patches [set wealth random 100 set pcolor green ]' M$ _* }4 w4 u8 Z1 s9 G
end' `& L) _, Y! C6 F' _2 |
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to go+ O r9 u" \" m5 ^1 W( ?
let mylist1 []
z' g i; F9 D) j j set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
* B, U/ i9 g } let mylist2 []
: X$ o3 M$ h. {" q! f' s set mylist2 n-values count patches [? + 1]2 i) |, t# Y) J9 y
# E O+ E1 s) l& Q9 L- W. J6 } ( foreach mylist1 mylist21 K' B, f k$ O- R( |$ X
[
1 V+ j/ n* O4 F- y! k& N ask ?1[ set rank ?2]
& W1 Q# Z4 M+ x4 V# G show [rank] of ?1
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)
& N# L' m" T6 z" ]% \+ y8 _ let mylist3 [], N' K5 @8 U) V P+ h
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set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches' j& f: N* P Q! a8 X
show count patches! Y6 J5 C/ Y9 ~
show mylist1 ) b+ r' e) O! L/ h
show mylist3! [4 p& z9 z% ^3 _
end
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' m6 ]$ }; r5 W8 j4 h0 ]/ D! ~这时的mylist1 和mylist3 应该是一样的 |
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