用户搜索优化

@@ -39,7 +39,7 @@ class User extends Backend
             if ($this->request->request('keyField')) {
                 return $this->selectpage();
             }
-            list($where, $sort, $order, $offset, $limit) = $this->buildparams('user.id,user.username,user.nickname.user.password,user.card,user.work_address,user.studynum');
+            list($where, $sort, $order, $offset, $limit) = $this->buildparams('user.id,user.username,user.nickname,user.password,user.card,user.work_address,user.studynum');
             $total = $this->model
                 ->with('group')
                 ->where($where)