sql error: select id,classid,ttid,onclick,plnum,totaldown,newspath,filename,userid,username,firsttitle,isgood,ispic,istop,isqf,ismember,isurl,truetime,lastdotime,havehtml,groupid,userfen,titlefont,titleurl,stb,fstb,restb,keyboard,title,ftitle,daan,newstime,titlepic,smalltext,diggtop from ***_ecms_news order by rand() limit 10
3x-x-5x
展开全文阅读=2x-5x
=-(5x-2x)
=-3x