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！！！
) I2 t! W& h+ K  I. K' Emodel "Burglar 1"
uses "mmxprs"
( c3 k, ?: V% @+ J5 [declarations
ITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
6 H2 e  j" N8 j- ^1 mVALUE: array(ITEMS) of real ! 物品价值
) S; n9 y: K* M! V9 NWEIGHT: array(ITEMS) of real ! 物品重量
+ b2 Y: R2 v# a- ttake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
* G- L7 W+ U. n! 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]
$ O, d0 I' x, |4 Y* `9 h' N! 目标: 使带走的总价值最大
  V% V1 X) @( m; FMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
* }% D! b0 U( K% eforall(i in ITEMS) take(i) is_binary
maximize(MaxVal) ! 求解混合整数问题
- o' l9 n6 J5 h; K" `8 {$ i! 打印输出结果
( h! ^' X. V+ ~* _- bwriteln("Solution:\n Objective: ", getobjval)
' E  h+ r6 d* i4 J" r# H* F3 Aforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
这段程序运行不了
% A5 s! c+ s! O: N4 [$ X

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
! d7 O( b" x$ \! I% W; U$ Y" }1 YWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
5 F% W# B7 M: }* H& ~, F# O试试！

空木葬花

非常感谢楼主的福利！