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"
: V  O+ g7 i( U, y* [. G  z7 }declarations
ITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
/ I" k* G% I" R3 \" P. PVALUE: 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
, d4 U* C; A: b" s) d! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
& d6 R7 \8 O4 S) P% ZWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
& D; k* i; h0 g# d; |/ H( B( M! 目标: 使带走的总价值最大
- G8 z1 z  `! s( ZMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
) ^0 d, U$ k7 x! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
  U3 S  n2 O# |8 W" Y! 所有变量取值都为0 或1
7 r# n+ Z1 I. b' z$ o7 M3 pforall(i in ITEMS) take(i) is_binary
8 b, j% E$ y5 y9 o8 K% z& smaximize(MaxVal) ! 求解混合整数问题
, X$ O! @& I1 l) l, o: M! 打印输出结果
( `2 U/ Z" j* O& q# {$ ?" rwriteln("Solution:\n Objective: ", getobjval)
* H. Y4 c  }6 M. J7 G% m3 d& ?5 N' Jforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
( x- v5 z2 ?# E3 U2 y6 S0 Dend-model
  G! [' ~( H' t这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
- f& e( E: p2 I8 o& H% XWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
  }$ N  u7 X! v$ C3 Z& d: S; j换成
4 f! m. b+ {( q. y8 uVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
! T, @, B1 `# ^+ f! F# t试试！

空木葬花

非常感谢楼主的福利！