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 W7 B# b' c' F8 `# z4 F) y  F4 j5 _uses "mmxprs"
declarations
ITEMS = 1..8 ! 物品标号范围
  F1 K: P9 W4 C+ \' |, l# O* CWTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
5 H" O* J( T/ @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
! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
8 i8 W  E3 x' d+ {5 wWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
% t5 P- k1 ^) j. @7 n. z! 目标: 使带走的总价值最大
9 t3 |. H9 ^$ G8 p& \# S& xMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
1 [! r3 H# {- b) S! 重量限制
! h& U/ X0 u; t5 E/ ^+ U4 zsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
2 t2 c1 B  D, \. p% B8 {( I: b8 O5 D! 所有变量取值都为0 或1
6 G' {5 k) I7 s3 Oforall(i in ITEMS) take(i) is_binary
! m% Q. u0 ?! x% P( a. Bmaximize(MaxVal) ! 求解混合整数问题
! 打印输出结果
writeln("Solution:\n Objective: ", getobjval)
' e, S8 H  c/ ^( Nforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
7 t. y5 K, Y$ z: a2 d# ^6 e, P这段程序运行不了
3 S& ?9 Y# Z3 O1 _' @9 {

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
$ H; n% R9 Y4 t! I- _7 ~7 s/ C换成
5 X  I' X* q' h; TVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
8 O/ p. x  o# `% d  rWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
/ G2 Z: b# \/ o/ N0 x+ f# l6 C1 o试试！

空木葬花

非常感谢楼主的福利！