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"
uses "mmxprs"
declarations
) |: K4 a6 b4 S* ]4 xITEMS = 1..8 ! 物品标号范围
0 j- I# X2 @. a1 {9 gWTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
2 L) W$ I7 J, e- F, J+ ^1 ]7 mWEIGHT: array(ITEMS) of real ! 物品重量
% P3 r( `: z) F) f2 Ltake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
! 物品: 1 2 3 4 5 6 7 8
  Z$ r5 j! y+ t* R" x4 M7 VVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
! 目标: 使带走的总价值最大
; l1 U/ Y* z8 O1 RMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
: p4 ~& F, r" D( E6 r9 M0 m! 所有变量取值都为0 或1
forall(i in ITEMS) take(i) is_binary
maximize(MaxVal) ! 求解混合整数问题
! 打印输出结果
7 ]( R0 R1 J& q4 {0 Dwriteln("Solution:\n Objective: ", getobjval)
forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
; x! y8 o+ p6 \' L0 s+ `8 J1 \end-model
这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
9 {% F# k) q: n. Y9 i" j, lWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
# y6 P4 b* X* ~2 D$ qVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
8 o+ Z7 D! ^- p* m6 hWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
  U% {& _9 a/ |5 B$ k& J8 b5 C试试！

空木葬花

非常感谢楼主的福利！