问题描述：
【急】lingo程,为何提示错误missing right parenthesis
model:
sets:
ii/1..11/:x,xx,ry,money;
endsets
data:
ry=12 24 48 96 8 8 24 32 40 92 92;
s=15;
money=10200 15300 35000 63800 6900 10300 15300 22000 35000 43750 54700;
enddata
@sum(ii:x(i)*xx(i))>s;
@for(ii:x(i)*xx(i)
model:
sets:
ii/1..11/:x,xx,ry,money;
endsets
data:
ry=12 24 48 96 8 8 24 32 40 92 92;
s=15;
money=10200 15300 35000 63800 6900 10300 15300 22000 35000 43750 54700;
enddata
@sum(ii:x(i)*xx(i))>s;
@for(ii:x(i)*xx(i)
问题解答：
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