$n=0;
$query=mysql_query("select count(*) as sm from jiaoshi");
mysql_query("set names 'GB2312'");
$row=mysql_fetch_array($query);
$count=$row['sm'];
if(empty($offset))
{$offset=0;}
echo $offset;
$query=mysql_query("select * from jiaoshi order by id asc limit $offset,$list_num") or die ("fail");
mysql_query("set names 'GB2312'");
while($row=mysql_fetch_array($query)){
if(($n%2)!='0'){
echo "