Question

lingo 程序总是显示错误 帮忙看看是怎么回事，谢谢啦 急！！！！

max=0.133*x1+0.414*x2+0.234*x3+0.218*x4;
0.02*x1+0.01*x2+0.03*x3+0.01*x4<=24;
x1+x2+x3+x4=1200;
x1<=800;
x2<=700;
x3<=1000;
x4<=900;
@bin(x1);
@bin(x2);
@bin(x3);
@bin(x4);

Answer 1

错误代码81是模型找不到可惜解。。。。
经过分析应该是你的lingo函数用错了，x1,x2,x3,x4,x5你的原意应该是要定义为整数(用@gin(x))，但是你写成@bin(x)了，@bin(x)是定义x为0-1变量。。。
max=0.133*x1+0.414*x2+0.234*x3+0.218*x4;
0.02*x1+0.01*x2+0.03*x3+0.01*x4<=24;
x1+x2+x3+x4=1200;
x1<=800;
x2<=700;
x3<=1000;
x4<=900;
@gin(x1);
@gin(x2);
@gin(x3);
@gin(x4);