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5仿真币
在使用Order List时,当一个order list满足不了order的数量,要用第二个甚至第三个order list,有一段程序,请大虾解释一下,多谢!程序如下:; r% n9 A- |) V
begin P_Order arriving procedure
X$ @* W( q" y9 O5 U" | set V_NumWanted to 10
' g1 L" D0 T# W( p4 R set V_NumOnList to OL_List1 current value- K& y- W' G8 r" N; ?
order V_NumWanted loads from OL_List1 to P_NextProc" Q6 s0 ~0 G' z" r
in case order not filled; q+ { S. P9 K: S' I
begin7 v, B7 Z- x4 N* b M/ z1 _
wait for .01 sec8 ~/ O" G! k1 k n. Z
decrement V_NumWanted by V_NumOnList - OL_List1 current value5 v1 g4 _% p: U
set V_NumOnList to OL_List2 current value6 ~( [, O% L0 u; o: L/ r1 U
order V_NumWanted loads from OL_List2 to P_NextProc
& ` _4 Q9 g! n, l4 e3 E& Z in case case order not filled
6 Z3 w( ?# I3 t$ l0 G1 g ................................................................. e! `! n) T1 }& O$ k+ n
h+ P5 D2 X1 p& J) S) k' i
7 x t6 ?9 I9 n$ X- g& S' @我就是不明白上面用红绿色作标记的那句,为什么后面要加-OL_List1 current value.用前面绿色部分,即把不够的load算出来就不行了吗? |
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由于有in case order not filled这句,所以我觉得红色部分应该可以去掉。你还是自己测试一下吧,不一定要按书上说的做。
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