model: sets: gupiao/A,B,C,D,E/:daima; time/f_1..f_2/:date; link(gupiao,time):low,high,profit; endsets data: daima=600000,600050,600246,600839,601857; date=20070104 20070105; low=19.96 19.52 4.67 4.65 0 27 4.3 4.31 0 0 ; high=23.44 21.46 5.14 4.93 0 28.48 4.63 4.59 0 0 ; enddata max=@sum(link(i,j):profit(i,j)); @for(profit(i,j):10000*1.2); end 这个语言为什么提醒我溢出问题? 请教广大高手们!!! |