lingo 模型中不是集合属性的其他参数可能进行实时数据处理吗model:sets:quarters/1,2,3,4/:dem,rp,op,inv;endsetsdata:dem=40,60,75,25;a=?;enddatamin=@sum(quarters:400*rp+450*op+20*inv);@for(quarters:rp
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