$totalpage=(int)$totalpage;
$start_rowno=($pageno-1)*$pagesize;
$query="select * from info order by id DESC LIMIT.$start_rowno.",".($pagesize+1)";
$result=mysql_query($query,$db) or die ('SQL错误');
$num_rows=mysql_num_rows($result);
总是提示SQL错误,总是高不明白,谢谢指教