求lingo编程求解目标规划问题~答:MONTH/JAN,FEB,mar,apr/;size/21IN,25IN,29IN/: TIME,COMPENSATION;PRODUCT(size,MONTH): produce,contract,inventory,LACK;endSETS ! The objective;min = @SUM(PRODUCT:inventory* 5)+ @SUM(month(j):sum(size(i):LACK(i,j)* COMPENSATION(i)));!四月份库存量为150;for(size(I):invent...