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！！！
7 n6 R% ?* l/ s$ ?  A( Y3 Cmodel "Burglar 1"
uses "mmxprs"
declarations
/ w- g* p2 s9 `ITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
0 q" H$ x  f, b# WWEIGHT: array(ITEMS) of real ! 物品重量
5 S$ U  _0 |& i# otake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
+ g3 N5 p/ |" C: ~* Cend-declarations
! 物品: 1 2 3 4 5 6 7 8
! _' u* t7 Q$ E# V2 r" ~VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
8 L/ e; p$ H2 @WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
! 目标: 使带走的总价值最大
9 }/ W, f3 w9 R; XMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
3 C# A% _9 k5 ~1 X3 N. j7 s# f& i1 h! 重量限制
6 i* D  |( r+ }! csum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
forall(i in ITEMS) take(i) is_binary
6 k4 c0 ]6 s9 }5 D$ `2 ?" k3 Wmaximize(MaxVal) ! 求解混合整数问题
2 N4 g8 r6 T; {) J5 U* z! 打印输出结果
writeln("Solution:\n Objective: ", getobjval)
/ b# I) z- R% a5 R5 B1 ]5 a& [6 B# Wforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
  e5 |5 v2 y3 E9 \& i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]
: ~- I4 d" [3 B) ?% s换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
' k4 y( g  ?3 A5 ]试试！

空木葬花

非常感谢楼主的福利！