Lingo 练习转运问题

model:
title ¹¤µØË®Äàµ÷ÓÃÎÊÌâ;
! ¶¨Ò弯ºÏ¶Î;
sets:
LiaoChang/1…6/:A,B,D;
GongDi/1…2/:X,Y,E;
YunSongLiang(GongDi,LiaoChang):c;
EndSets

Data:
! ¹¤µØµÄλÖÃx,y×ø±ê¼°ÐèÇóÁ¿;
A = 1.25 8.75 0.5 5.75 3 7.25;
B = 1.25 0.75 4.75 5 6.5 7.75;
D = 3 5 4 7 6 11;
! Áϳ¡µÄλÖü°ÈÕ´æ´¢;
X = 5 2;
Y = 1 7;
e = 20 20;
EndData

[Obj]Min =
@sum( GongDi(i):
@sum( LiaoChang(j): ( C(i,j) * @SQRT( ( x(i)-a(j) )^2 + (y(i)-b(j))^2 ) ) )
);

!´æ´¢Á¿ÏÞÖÆ;
@for(GongDi(i):
@sum(LiaoChang(j):C(i,j)) < e(i)
);

!ÐèÇóÁ¿ÏÞÖÆ;
@for(LiaoChang(j):
@sum(GongDi(i):C(i,j)) = d(j)
);

end

复制过来的代码，好像注释文字的编码有点问题，有什么看不懂的，不过问题比较简单，代码有看不懂的，可以在下面留言