问题描述：
lingo中的语法问题
程序如下
sets:
r/1..2/:a;
e/1..4/:b;
link(r,e):c,x;
endsets
min=@sum(link(i,j):c(i,j)*x(i,j));
ST
@for(r(i): @sum(e(j):x(i,j))=a(i));
@for(e(j): @sum(r(i):x(i,j))=b(j));
end
错误如截图:
程序如下
sets:
r/1..2/:a;
e/1..4/:b;
link(r,e):c,x;
endsets
min=@sum(link(i,j):c(i,j)*x(i,j));
ST
@for(r(i): @sum(e(j):x(i,j))=a(i));
@for(e(j): @sum(r(i):x(i,j))=b(j));
end
错误如截图:
问题解答：
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