为什么老转不到下10个记录


<?
$connect =mysql_pconnect("localhost","root","");
mysql_select_db("cl",$connect);
$page_num=10;
if (!$start_num) {
$start_num=0;
}
$sql="select * from userinfo where id >$start_num and
id < ($start_num + $page_num )";
$result= mysql_query($sql);
$rows=@mysql_num_rows($result);
$a_roes=@mysql_affected_rows($result); //可以去掉？
for ($i=0;$i<$rows;$i++) {
@mysql_data_seek($result,$i); //可以去掉？
$data=@mysql_fetch_array($result);
echo "

";

echo "Id: $data [id],姓名data[xm]";

echo "