本帖最后由 mengzhang 于 2010-11-22 21:04 编辑 9 U2 t( \1 \* ]6 u& R
3 b" q) I9 u' h. x" M; l定义一个Machine(Batch类型),和一个计数器nCounter(Integer型),machine输入规则: . B( K ~% ?( i5 ^# I9 v. bDIM midValue AS INTEGER ( V0 b0 {- \3 N8 T1 V' xnCounter = nCounter + 1' [- ~3 A% a8 k3 I# M& Z
midValue = MOD(nCounter, 4) . n! |0 f4 r) ? }" d zIF midValue =19 |6 }5 I& V" L V
PULL from A out of WORLD ( {# H% I$ g) z/ Q. rELSE , m- L/ |& @" t3 m, X3 nPULL from B out of WORLD . _* U" U6 W& V; `% x) [ENDIF