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
设这本科普书一共x页.
展开全文阅读x-1\3x=90
2\3x=90
x=135
答这本科普书一共135页.