max=3*x1+2*x2-5*x3-2*x4+3*x5;x1+x2+x3+2*x4+x5<=4;7*x1+3*x3-4*x4+3*x5<=8;11*x1-6*x2+3*x4-3*x5>=3;@bin(x1);@bin(x2);@bin(x3);@bin(x4);@bin(x5);这个是lingo的代码。