added 规范接口错误码返回

application/admin/controller/Menu.php

@@ -111,7 +111,7 @@ class Menu extends Base {
             ],
             'data' => [] //这个数据应该是从数据库中查出来
         ];
-        $this->result($table,200);
+        $this->result($table, ReturnCode::GET_TEMPLATE_SUCCESS);
     }
 
     public function add(){

application/admin/controller/ReturnCode.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ *
+ * @since   2016-02-18
+ * @author  zhaoxiang <zhaoxiang051405@outlook.com>
+ */
+
+namespace app\admin\controller;
+
+
+class ReturnCode {
+
+    const GET_TEMPLATE_SUCCESS = 200;
+    const SUCCESS = 1;
+    const ERROR = 0;
+    const GET_TEMPLATE_ERROR = 404;
+
+}