这lingo程序错在哪?

错误很多,你对照着比较一下吧model:sets:num_i/1。。4/;num_j/1。。4/;num_t/1。。7/;link(num_i,num_j,num_t):x;link2(num_i,num_j):s;endsetsdata: s=1000,800,600,500, 1500,800,700,600, 1300,900,700,400, 1000,800,700,500;enddata[obj]max=@sum(link(i,j,t):x(i,j,t)*s(i,j)) -250*12*7-200*25*7-170*17*7-110*10*7 -50*@sum(link(i,j,t):x(i,3,t))-50*@sum(link(i,j,t):x(i,4,t));@for(num_t(t):@bnd(1,x(1,1,t),3));@for(num_t(t):@bnd(2,x(1,2,t),5));@for(num_t(t):@bnd(1,x(1,4,t),2));@for(num_t(t):x(1,3,t)=2);@for(num_t(t):x(2,1,t)>=2);@for(num_t(t):x(2,2,t)>=2);@for(num_t(t):@bnd(2,x(2,4,t),8));@for(num_t(t):x(3,1,t)>=2);@for(num_t(t):x(3,2,t)>=2);@for(num_t(t):x(3,3,t)>=2);@for(num_t(t):x(3,4,t)>=1);@for(num_t(t):x(4,1,t)>=1);@for(num_t(t):x(4,2,t)>=3);@for(num_t(t):x(4,3,t)>=1);@for(num_t(t):x(4,4,t)=0);@for(num_t(t):@sum(num_i(i):x(i,1,t))