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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:
) `8 j; _, z f2 Hbegin P_Order arriving procedure# f% K% g2 m6 M
set V_NumWanted to 103 z* |" A# q9 v. n% s* {" f% `
set V_NumOnList to OL_List1 current value' H6 H! @. [2 M7 [/ x$ U
order V_NumWanted loads from OL_List1 to P_NextProc
& t& O0 \ K g1 `; v9 D: V3 Q in case order not filled
; \! z. k/ I6 t4 Z( A begin
' k( E' E$ u% q. G0 A wait for .01 sec% j0 U6 ]# L" S9 ~. u0 ~/ Y$ R. {
decrement V_NumWanted by V_NumOnList - OL_List1 current value
; ^$ `2 k3 `) a$ Y# Q! e( o0 _" n2 w; t& \ set V_NumOnList to OL_List2 current value
. k/ y( z4 P. ?* B! E, K order V_NumWanted loads from OL_List2 to P_NextProc
1 ?4 H- `% y, l* k! K$ O6 M in case case order not filled$ Y+ r9 S' J0 M3 L% \3 `' i
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1 V4 N* D: N" }; w. 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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