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发表于 2010-5-11 13:19:52
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用list吧
' Y$ @2 O" ~: m) k/ kpatches-own [wealth rank]. |: u( @! N9 X" Y" T( o: f
to setup4 O: f* e; e: c7 N2 e) y
ca
4 a$ s- I& j# h# ~ ask patches [set wealth random 100 set pcolor green ]4 O. ]6 ~4 a m: _& q
end
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# l4 O- q, C- Y( A! ]# Qto go
: {; z, I% \3 V7 [ g$ d let mylist1 []* j! `+ n* v! a U5 o4 \* U$ N$ p
set mylist1 sort-by [[wealth] of ?1 < [wealth] of ?2] patches
; w( |' e' N3 M% H let mylist2 []: M1 P6 v* o+ w9 p% E
set mylist2 n-values count patches [? + 1]- D4 N0 s1 o7 G. ?/ m a% c* v
" O6 C4 }- k# W- Z# @; l C+ t ( foreach mylist1 mylist2: C% h- \" u+ j
[- [" G; F% D0 ]- V
ask ?1[ set rank ?2]
$ @- e' c6 t' e2 |! ]) T show [rank] of ?1+ j2 B8 V8 t7 G2 x, P
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- l/ ?- H7 o+ W3 c z9 u let mylist3 []. p6 l+ `9 P2 K- i$ [
& E2 {- e3 i: ?' a
set mylist3 sort-by [[rank] of ?1 < [rank] of ?2] patches+ l1 w. |; d& S9 y8 u
show count patches& G+ d* R+ O u7 s. j
show mylist1 ; E. E" ~: U$ p# I' ~$ A+ n/ _
show mylist3
! Y# Z1 M+ A4 Z# h# a# C$ Qend
$ ~2 \( @9 c1 ^( h* j/ n% R
, E7 ~8 c& P4 b& q& A# s这时的mylist1 和mylist3 应该是一样的 |
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