lingo 模型定义错误,求高手修改,model:sets:n/1..20/;a/1..13/:demand;links(n,a):b,x;endsetsdata:demand,b=@ole('D:\123.xls');enddatamin=@sum(links:b*x(i,j));@for(a(j):@sum(n(i):x(i,j))=1);@for(n(i):@sum(a(j):x(i,j))
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