Xpress-IVE 建模问题

cy411522

哪位高人能帮小弟解决这个问题，小弟不甚感激！！！
model "Burglar 1"
: l: W  h/ Z8 z) yuses "mmxprs"
5 m, X& ?% f0 J# N# f1 {declarations
% J6 n5 P2 Q0 _% \( Z* @ITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
# `) \- a/ c% g! M: WVALUE: array(ITEMS) of real ! 物品价值
1 q; N" z6 f: b. a+ Z% `WEIGHT: array(ITEMS) of real ! 物品重量
take: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
  ]" O* X" P, \9 b# f" rend-declarations
7 N% B+ P- {. p2 l6 p! 物品: 1 2 3 4 5 6 7 8
* L% H- b& T' D( t# `1 H4 zVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
5 |* f+ [& R/ ]" c4 |WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
; J! k$ m5 k/ R& B! S! 目标: 使带走的总价值最大
' |/ G0 ?5 Z+ K$ lMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
3 E, }4 i) P2 e+ b! 重量限制
; _: S+ f$ T* t9 c5 xsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
forall(i in ITEMS) take(i) is_binary
- V! v& u4 A& ~maximize(MaxVal) ! 求解混合整数问题
! 打印输出结果
: N' r6 F& s* e& ?/ A: w* wwriteln("Solution:\n Objective: ", getobjval)
, h% v' ?- a3 r5 ?forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
6 C$ C, W1 l6 IWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
% u: _6 g* N# l9 D7 d换成
) }0 Z! z4 _5 qVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！