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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:
- }% k& }: a2 ?6 Abegin P_Order arriving procedure
; `; d6 V/ l' j" k* s( T! q set V_NumWanted to 106 I' O% P' h& N( |1 x( p" w
set V_NumOnList to OL_List1 current value9 B; a" z$ O0 C1 n! b
order V_NumWanted loads from OL_List1 to P_NextProc
2 f- T5 O1 O) l$ L& S in case order not filled5 q0 Y' C, [+ M- S( E2 w1 O. N
begin3 E! Q! M: `6 k; V: P
wait for .01 sec
: Q% J4 F% m2 w decrement V_NumWanted by V_NumOnList - OL_List1 current value
" [# ~, g' U1 F% e set V_NumOnList to OL_List2 current value" I$ R% ?$ l" ~$ `! w* p7 K
order V_NumWanted loads from OL_List2 to P_NextProc
* Y6 M( R4 k+ P- U+ Q: ? in case case order not filled0 a$ K' N: v3 U9 q
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0 I" U+ V, x( b' Y% z4 F7 }# i- h; V5 a- E
: I4 X4 r4 H" i/ n( g7 Z* S' B4 X ?, @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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