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 v5 r* {  D, T- y8 T1 fmodel "Burglar 1"
uses "mmxprs"
7 i! C7 P- g. N; j" Adeclarations
& x$ P1 x: Y% Z1 q1 ~/ AITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
1 [: {) q9 Y' p1 z# r0 O+ rVALUE: 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
! 物品: 1 2 3 4 5 6 7 8
9 K* y& ?% c/ q+ O2 C- Y4 }0 h: NVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
/ x( T) K# E. l4 L4 J- f: _# f! 目标: 使带走的总价值最大
  R* [$ p; R+ L& J3 tMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
" z8 o& x4 }! i. }( g- O( _2 L# x% c! 重量限制
3 _, z! Y. p8 ?! y% j  ~" t2 T' nsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
' e( l5 ^8 O3 A  V" u! 所有变量取值都为0 或1
/ B  `) O* x- `" aforall(i in ITEMS) take(i) is_binary
, k% |6 v" B' D& K0 Smaximize(MaxVal) ! 求解混合整数问题
% J1 f& F; r6 d1 ^2 W1 o6 U: m: Z- b( r" Q! 打印输出结果
writeln("Solution:\n Objective: ", getobjval)
/ O7 W" }+ S0 L6 oforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
5 l% ^" @2 z8 a- T" x( b1 Uend-model
这段程序运行不了

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
4 B, z: C) y6 y% c1 eWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
VALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
) R' }5 l2 K. s) ~' PWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！