数据修改成功后,页面显示的还是原来的数据<?PHP
include_once ("conn.php");$value=$_GET['value'];$sql_itemcode="SELECT * FROM `product` WHERE `item_code` = '$value'";
$querya = mysql_query($sql_itemcode); 
$rs= mysql_fetch_array($querya);
?>
<div class="fanbox">
    <h3>产品详情</h3>
    <form id="mod_form" action="product_change.php?action=mod&item_code=<?PHP echo $rs['item_code'];?>" method="post">
        <table width="550" cellpadding="0" cellspacing="0" class="post_table">
        <!--
          <tr>
            <td width="174" align="right">ID:</td>            <td width="374">               <input name="item_code" type="text" class="input2" value="<?PHP echo $rs['id']; ?>" maxlength="30" disabled />
           </td>
       </tr>
        -->
       <tr>
        <td width="174" align="right">Item_Code:</td>        <td width="374">           <input name="item_code" type="text" class="input2" value="<?PHP echo $rs['item_code']; ?>" maxlength="30" disabled/>
       </td>
   </tr>
   <tr>
    <td height="28" align="right">产品名称:</td>
    <td><?PHP echo $rs['description']; ?></td>
</tr>
<tr>
    <td align="right">HKS_物流成本(RMB):</td>
    <td> <input type="text" class="input2" name="hks_freight" maxlength="30" value="<?PHP echo $rs['hks_freight']; ?>"/></td>
</tr>
<tr>
    <td align="right">JPS_物流成本(RMB):</td>
    <td>
        <input type="text" class="input2" name="jps_freight" maxlength="30" value="<?PHP echo $rs['jps_freight']; ?>" /></td>
    </tr>
    <tr>
        <td align="right">FBA_物流成本(RMB):</td>
        <td>
            <input type="text" class="input2" name="fba_freight" maxlength="30" value="<?PHP echo $rs['fba_freight']; ?>"/></td>
        </tr>
        <tr>
            <td align="right">运营成本(RMB):</td>
            <td>
                <input type="text" class="input2" name="operating_costs" maxlength="30"  value="<?PHP echo $rs['operating_costs']; ?>"/></td>
            </tr>
            <tr>
                <td height="20" align="right">重量(g):</td>
                <td>
                    <input type="text" class="input2" name="weight" maxlength="30"  value="<?PHP  echo $rs['weight'];?>"/></td>
                </tr>
                <tr>
                  <td height="26" align="right"><p>信封大小:</p>
                  </td>
                  <td><input type="text" class="input2" name="envelope_size" maxlength="30"  value="<?PHP  echo $rs['envelope_size'];?>"/></td>
              </tr>
              <tr>
                  <td height="31" align="right"><input name="submit" type="submit" class="btn" value="修改"/></td>
                  <td>&nbsp;</td>
              </tr>
          </table>
      </form>
  </div>
  <script type="text/javascript" src="js/jquery.form.js"></script>