想在分页上添首页和尾页

想在分页上加首页和尾页

  extract($_REQUEST);

  $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;*/

   $where = (! isset($surplus)) ? '' : " where surplus='$surplus'";

   $query=mysql_query("select * from jiaoshi $where 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 "";}

	  else{

	  echo "";

	  }

	  	  

	if($row['surplus']==0)

	     $ss="不可选";

	else $ss="可选"; 

     echo"

	  ".$row['id']." 

	  ".$row['subject']." 

      ".$row['teacher']." 

      ".$row['zhicheng']." 

      ".$row['number']." 

	  ".$row['xuehao']." 

	 ".$ss."

	  查看

   ";

   $n++;

   }

   

   ?>

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------解决方案--------------------
print "首页上一页";}

print("下一页尾页");

居然两个print语句的写法不一样……唉，进步空间很大
------解决方案--------------------
$pageno=floor(($offset/$list_num)+1); //改成这样呢