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"
6 p9 l% n3 B1 q2 J' k2 O7 Ruses "mmxprs"
declarations
: B/ B6 c1 |3 \# O" H- i& G: G) ~ITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
* u) Y" i  T9 T. u, GVALUE: array(ITEMS) of real ! 物品价值
: B* R. g2 _6 e' R0 b* M3 L& iWEIGHT: array(ITEMS) of real ! 物品重量
3 @- ]) b& `3 \. M9 ^4 S/ j( z7 N$ Vtake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
9 w" _* p. d/ k- g; u6 q3 s! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
8 T% d+ z5 I: L2 ?5 LWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
1 u6 G- j" R$ }2 D2 A6 l$ O! 目标: 使带走的总价值最大
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
4 C) l1 j. C$ x! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
6 V* C! I, I/ U; 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
writeln("Solution:\n Objective: ", getobjval)
forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
" F0 d5 E" m  r" |2 `: ~WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
2 `# h) p8 @% h换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
0 E' E% @& i* A. t: F) B; p+ e6 Z  ZWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！