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！！！
% k' U) N  U* L. C; Fmodel "Burglar 1"
) M& o$ N( H: J4 Juses "mmxprs"
  Q/ i( H3 I2 }9 F- @declarations
0 ?$ @* G( u6 P" f, qITEMS = 1..8 ! 物品标号范围
9 F) Z$ @  I8 F9 ]% \) l3 O; K! P1 rWTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
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
end-declarations
) ]1 n* f$ a7 W0 V7 w3 g( D! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
& ~  G7 C# N1 I8 A8 eWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
( {6 `6 R4 v9 w' [1 W) o& L% h6 z4 w! 目标: 使带走的总价值最大
( J. j  u1 ]  T# D+ FMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
5 H4 d% J* Z( R4 m! 重量限制
. P* E; D) k- x: Y" S$ o3 E5 Wsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
6 X, J7 R& P+ ]7 X! 所有变量取值都为0 或1
& n3 ?, s$ i9 l6 D) d% D' H- w5 rforall(i in ITEMS) take(i) is_binary
) `; u5 Y4 b* X4 w- z. [7 \maximize(MaxVal) ! 求解混合整数问题
! 打印输出结果
! w( l5 v( f& v8 P' U; ^) C1 v0 Owriteln("Solution:\n Objective: ", getobjval)
7 R3 a, H, a2 G6 X8 O6 `, N3 Gforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
8 R0 H; A8 |4 z4 [* b& V4 j4 f这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
' T  y( E5 S. R4 Y' q换成
' G. w3 }% b: F) A: \4 G: oVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
5 T2 f. L& r7 V& Y8 K: z  H试试！

空木葬花

非常感谢楼主的福利！