Lingo求解整数规划问题，求大神指导如何建立

Question

!目标函数;

min=@sum(gongyingshang(i):R(i)*@sum(linjian(j):Price(i,j)*Volume(i,j)))+@sum(gongyingshang(i):T(i));
!供应约束;
@for(Links(i,j):Volume(i,j)<=Supply(i,j));
!需求约束;
@for(linjian(j):@sum(gongyingshang(i):Volume(i,j))=demand(j));
!运费限制;
@for(gongyingshang(i):T(i)=@if(@sum(linjian(j):Volume(i,j)) #GT# 0, Transport(i) ,0));
!折扣限制;
@for(gongyingshang(i):R(i)=@if(@sum(linjian(j):Volume(i,j)) #GT# Rebate(i), Rate(i) ,1));
@for(Links(i,j):@gin(Volume(i,j)));
end

Answer 1

@gin（）可以限制是整数追问

因为对于Lingo不太懂，不知道大神帮我编一下，感激万分

追答

没有具体参数，很难搞啊，我也只是个新手而已