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！！！
& q# X% _# I' @' F4 r  nmodel "Burglar 1"
& p0 h% t; N! y. p; y4 o" Huses "mmxprs"
5 F  Q+ v* l! U( x1 |declarations
ITEMS = 1..8 ! 物品标号范围
( `7 S! Y/ ~: f5 O7 X" r4 O+ C$ w; HWTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
7 N& a0 T" L) o1 uWEIGHT: array(ITEMS) of real ! 物品重量
8 W3 m1 G4 P( S9 B) N: Ttake: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
. J% y% r7 L1 s' `. F! 物品: 1 2 3 4 5 6 7 8
# {% o0 Z% _. }/ IVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
- e' k+ U+ [! CWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
& Z. D# f# O: p! 目标: 使带走的总价值最大
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
, r" K1 \" e7 [forall(i in ITEMS) take(i) is_binary
maximize(MaxVal) ! 求解混合整数问题
* d1 N- b7 X% |) n0 n& M  O! 打印输出结果
# h5 ~+ w# z- Zwriteln("Solution:\n Objective: ", getobjval)
forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
6 r8 r' E! Z, N: aend-model
这段程序运行不了
; D" w% t) P6 N+ U; |6 }  m

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
! V5 f2 X1 Y0 j4 S; CWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
7 V  A$ R! c* ~" s; Z6 K换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
6 \* q6 G  }$ m! X. V. MWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
. \) u! t# e" g试试！

空木葬花

非常感谢楼主的福利！