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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 , w( }$ d& T* R) }4 b8 V* P6 {3 Y
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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:
! y1 ~1 c# Z8 g9 D$ _% qDIM midValue AS INTEGER/ ^6 }# d: f; w/ q5 ^/ q) J
nCounter = nCounter + 1- [. ]% v1 b( @4 M
midValue = MOD(nCounter, 4)' `* P! i# i4 g/ @7 ^' U1 {
IF midValue =1
/ I- g9 }; m* {4 r$ XPULL from A out of WORLD1 |( |1 @* m) v& ?; K
ELSE, H1 @( H% l5 {
PULL from B out of WORLD' _; k" S% D. W$ R2 K
ENDIF |
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