diff --git a/application/common/model/Base.php b/application/common/model/Base.php
index b78cc1d1..8ac089de 100644
--- a/application/common/model/Base.php
+++ b/application/common/model/Base.php
@@ -4,5 +4,27 @@ namespace app\common\model;
 use think\Model;
 
 class Base extends Model {
+	protected $param;
+	protected $type = array(
+		'id'  => 'integer',
+		'cover_id'  => 'integer',
+	);
 
+	public function initialize(){
+		parent::initialize();
+		$this->param = \think\Request::instance()->param();
+	}
+
+	/**
+	 * 数据修改
+	 * @return [bool] [是否成功]
+	 */
+	public function change(){
+		$data = \think\Request::instance()->post();
+		if (isset($data['id']) && $data['id']) {
+			return $this->save($data, array('id'=>$data['id']));
+		}else{
+			return $this->save($data);
+		}
+	}
 }
\ No newline at end of file