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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:
- W/ z7 C6 J. u* z' T& z0 Obegin P_Order arriving procedure; N* O3 s0 Q3 R0 s$ g8 w
set V_NumWanted to 10. _( ^! r4 ~+ P( ]9 F" C6 k
set V_NumOnList to OL_List1 current value
* Q9 j6 d( K; g K' m order V_NumWanted loads from OL_List1 to P_NextProc
0 V7 k# m; c ^) A _' @# w. w! @ in case order not filled( Q7 J% l1 k! q1 ~- w: p
begin; O2 h$ \% U# ~1 K/ m: Q. X( l x1 o& r
wait for .01 sec
2 x1 [, j/ m) B+ j: @# a decrement V_NumWanted by V_NumOnList - OL_List1 current value" k! @. G2 m( T; Q8 X
set V_NumOnList to OL_List2 current value) Q* u% d; C4 f, w8 L# ]
order V_NumWanted loads from OL_List2 to P_NextProc8 }# Q- r6 d7 g: M& P0 P, u
in case case order not filled5 \# d2 [7 q: }
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5 N+ ]* _5 N1 D$ }& N& ^5 G$ G8 x) t7 r" c5 P5 h. M
7 Y' g; ~0 |( A; T6 U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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