TP的一个自动创建问题

<div class="user">									{$note}					<hr>					<form action='__APP__/index.php/u/upadmin' method='post'>					<table>							<caption>添加管理员名称</caption>						<tr>							<th>用户</th>							<td><input type='text' name='user' maxlength='10'></td>						</tr>						<tr>							<th>密码</th>							<td><input type='text' name='pwd' maxlength='10'/></td>						</tr>						<tr>							<td colspan='2'>								<input type='submit' />								<input type='reset' />							</td>						</tr>					</table>					</form>		</div>

		               $data['aname']=$_POST['user'];		$data['apwd']=md5($_POST['pwd']);		$data['bak']=$_POST['pwd'];		if($_POST['user']==''){						$this->error('请输入用户名');			exit();		}		if($_POST['pwd']==''){			$this->error('密码没有输入，请认真检查');			exit();		}				$count=$upadmin->add($data);