$sql="SELECT * FROM $my_type WHERE id='$id'";
    $result=mysql_query($sql);
    $row=mysql_fetch_array($result);
    echo "<table  border=\"1\" cellspacing=\"0\" cellpadding=\"1\" bordercolordark=\"#ffffff\" bordercolorlight=\"#0000ff\" width=\"950\">";
    echo "<form method=post action=e_type.php?id=".$id."  onsubmit=\"return check(this)\">";
    echo "<tr><td colspan=\"2\" align=\"center\">类别：<font color=\"#ff0000\">".$row[name]."</font>的内容</td></tr>";
    echo "<tr>";
    echo "<td>类别编号：</td><td>".$row[id]."</td>";
    echo "</tr>";
    echo "<tr>";
    echo "<td>类别名称：</td><td><input type=text name=name value=".$row[name]."></td>";
    echo "</tr>";
    echo "<tr>";
    echo "<td>类别图片：</td><td><input type=file name=upfile value=".$row[img]."></td>";
    echo "</tr>";
    echo "<tr>";
    echo "<td>类别介绍：</td><td><input type=text name=description value=".$row[description]."></td>";
    echo "</tr>";
    echo "<tr>";
    echo "<td colspan=\"2\" align=\"center\"><input type=submit value=\"提交修改\"><input type=button value=\"放弃修改\" onclick=history.go(-1)></td>";
    echo "</tr>";
    echo "</form>";
    echo "</table>";
   }
   else
   {
    $name=$_POST[name];
    $description=$_POST[description];
    $filepath="../../images/type/";
    $way=$_FILES["upfile"]["name"];
    $today=date("YmdHis");                    //当前时间
    $temp=explode(".",$way);                  //分割字符串取图片后缀名
    $way=$filepath.$today.".".$temp[1];       //文件上传路径
    $mysql_way="../images/type/".$today.".".$temp[1];    //存入数据库的链接，因为前台跟后台不在同一层，所以文件上传路径不等于存入数据库路径
    
    if(!(move_uploaded_file($_FILES["upfile"]["tmp_name"],$way)))
    {
     echo "文件上传过程中出现错误！";
     echo "<p>";
     echo "<meta http-equiv=\"refresh\" content=\"1; url=e_type.php\">";
     echo "更新类别信息：".$id."失败<p>";
     echo "两秒后返回";
    }
    else
    {
     $sql="UPDATE $my_type SET name='$name',img='$mysql_way',description='$description' WHERE id='$id'";
     $re=mysql_query($sql,$my_conn) or die(mysql_error());
     if($re)
     {
      echo "<meta http-equiv=\"refresh\" content=\"1; url=e_type.php\">";
      echo "成功更新类别介绍信息：".$id."<p>";
      echo "两秒后返回";
     }
    }