出错啦！
错误信息：Unknown column 'cases_can2' in 'field list'
错误编号：1054
SQL语句：select id,lm,title,apname,cases_can2,f_body,z_body,img_sl,wtime from `cases_co` where lm = 1 and pass=1 order by px desc,id desc limit 0, 8