protected $_validate = array(
array('webname','require','网页名必填'),
array('seo','require','SEO 名必填'),
array('text','require','网页说明必填'),
);


$model = D('seoname');
$result = $model->create();
if($result){ //表单验证
$result = $model->save();
$result ? $this->success('操作成功') : $this->error('操作失败');
}else{
exit($model->getError());
}