<span>
                      <?php
                       $qry = "select * from web_product_class order by c_code";                        $rs = odbc_exec($link,$qry);
                        if(!$rs){
                            exit("Error in SQL");
                        }                        echo "<select name='choose' id='Select'>";
                        echo "<option value=''>请选择文件夹</option>";
                        while (odbc_fetch_row($rs)){
                            $c_name=odbc_result($rs,"c_name");
                            $c_code=odbc_result($rs,"c_code");
                            echo "<option value='$c_code'>$c_name</option>";
                        }
                        echo "</select>";
                        odbc_close($link);                    ?>
</span>
上述是php创建的select控件,请问如何获取当前选择的值?