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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:
! e8 \. a) L+ ~8 s$ }8 G$ [6 q2 x8 Y) Sbegin P_Order arriving procedure
( S% P$ u; h: d8 @- x" `. U set V_NumWanted to 108 M6 ^6 W) P6 V% J# `
set V_NumOnList to OL_List1 current value5 g0 o$ V1 G' K) r' L k
order V_NumWanted loads from OL_List1 to P_NextProc
" p. e0 i. ]4 N; I* t8 k4 f5 r in case order not filled" E) K3 o6 ?; C
begin
* a4 d2 |: P2 |# l wait for .01 sec, C' Y2 E D/ M
decrement V_NumWanted by V_NumOnList - OL_List1 current value, ?, o. ~$ I" M
set V_NumOnList to OL_List2 current value% Q. @2 ~3 V# d
order V_NumWanted loads from OL_List2 to P_NextProc& k8 u' c) u9 Y5 Y
in case case order not filled
3 m: d8 C! H9 j5 R" A; n .................................................................0 J, }; T5 G5 Q4 C3 N$ L0 q
a, S3 [# O8 A% ~$ n) w/ D3 c
' [) q& m9 b9 a- X5 p1 V1 Q, \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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