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！！！
5 A9 a* i: @0 D  g3 ~0 N) E3 Amodel "Burglar 1"
uses "mmxprs"
2 t3 O3 `* a, C' Q. s; ^  A" ydeclarations
" c. M8 \+ U+ I+ ^5 F! LITEMS = 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
take: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
  R$ z) S6 O  m0 s; p! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
/ w/ h5 |! B, V9 IWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
! 目标: 使带走的总价值最大
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
3 A1 K! K" k9 U0 E" A: K! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
$ j# F& x+ M0 M, U& ?  Z! 所有变量取值都为0 或1
  v! n- B. l: e8 Vforall(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)))
1 w2 j/ w7 z7 `6 u+ _end-model
2 _$ A% P' o3 M' m2 p" j: X这段程序运行不了
  w0 [+ g8 Q3 c

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
- n- _$ u1 E) E3 r4 M% D0 e. RWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
8 s& t/ j1 B1 U3 z4 V换成
( K* _3 \3 K4 S; ~- IVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！