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发表于 2010-11-22 21:02:49
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本帖最后由 mengzhang 于 2010-11-22 21:04 编辑
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定义一个Machine(Batch类型),和一个计数器nCounter(Integer型),machine输入规则:
% H0 o9 {# J4 b: u/ cDIM midValue AS INTEGER
$ \/ m. y5 B; P0 V* A: ^/ OnCounter = nCounter + 1
! d# i9 K- \! _% L6 J6 T9 umidValue = MOD(nCounter, 4), S. V& t) d% C" ]' z
IF midValue =1
1 ^ i/ G3 m2 H) NPULL from A out of WORLD; U* K& _# [/ y& x: K! h+ d
ELSE$ _3 y' n4 f* b6 @# G
PULL from B out of WORLD
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