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"
+ e) C8 |" S) F- ~3 D! Pdeclarations
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
WEIGHT: array(ITEMS) of real ! 物品重量
1 M4 ?& E  r3 J7 \9 `. j3 utake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
% }, O- {2 j3 U  f2 Fend-declarations
) Q7 N4 B  b1 U! 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]
! 目标: 使带走的总价值最大
! G* V' d* ~5 P; o+ fMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
, a) T3 V: B7 [6 I! 重量限制
: j, x2 a1 D( t& S' i+ Y" Xsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
' B  q( ^! F3 L3 K( O6 r! 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
0 w6 e$ Z7 e: K  q9 Q- t! 打印输出结果
! q& y# R+ a% c0 Vwriteln("Solution:\n Objective: ", getobjval)
) u1 A& \* r3 Tforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
. _2 z: i. S- K' G. B) s! P5 U/ c/ kend-model
这段程序运行不了
" ^8 C! f" ~% v! ^2 B' g$ `

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
- q( [5 d9 C$ H: m换成
% y, C6 ]6 Z4 n: |# L+ {5 h; c# JVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
  u4 i: }' C3 B  d6 BWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
' c) Y8 m* {/ m- p3 e. ^9 w/ D试试！

空木葬花

非常感谢楼主的福利！