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！！！
! {5 n" Y- \; gmodel "Burglar 1"
uses "mmxprs"
4 r2 z+ _: [+ H# E2 x$ `% Ldeclarations
7 l8 z7 W. a- `$ [1 b' wITEMS = 1..8 ! 物品标号范围
6 |, W) I6 v( M" g4 x9 E( _WTMAX = 102 ! 允许携带的重量最大值
, W$ A8 S8 d4 kVALUE: array(ITEMS) of real ! 物品价值
WEIGHT: array(ITEMS) of real ! 物品重量
* h4 d- |' w& s3 \/ {5 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
VALUE := [ 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
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
+ k, m5 M2 o6 N0 K% X2 t& Y. ksum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
1 F% F- y, _* P1 w- ^' k! 所有变量取值都为0 或1
) q$ Y9 s) [& y) M" _forall(i in ITEMS) take(i) is_binary
9 K5 O& I. G: z/ D3 T2 rmaximize(MaxVal) ! 求解混合整数问题
- u4 I( Y9 s9 [; y! 打印输出结果
% K! O7 U! d( Q+ V4 Qwriteln("Solution:\n Objective: ", getobjval)
- u/ l+ J# e9 t% A2 pforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
. W  n7 l4 P6 u, {9 k- x- kend-model
这段程序运行不了
; d! D& c$ J3 `4 ]

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
! `' S$ I  P7 k% r  ~; AWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
0 M; `- o9 H4 N' k6 {  i) q1 YWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！