lingo的数据拟合modelsetsxl15nyendsetsdatan19202224model:sets:xl/1..5/:n,y;endsetsdata:n=19,20,22,24,25;y=6,7,8,9,10;enddata@free(a);@free(b);min=@sum(xl:(@log(y)*a-b-n)*(@log(y)*a-b-n));!用@sum求和需指明所属集合;end2，lingo软件咋下载呢00:00/03:5970%快捷键说明空格:播放/暂停Esc:退出全屏↑:音量提