public function amount(Request $request, Response $response)
 {
     $rs = ['flag' => 'FAIL', 'msg' => ''];
     $uid = isset($_POST['uid']) ? intval($_POST['uid']) : 0;
     $afftected = Member_Model::updateMemberById($uid, ['state' => 1]);
     if ($afftected < 0) {
         $rs['msg'] = '解封用户账号失败';
         Response::sendJSON($rs);
     }
     $rs['flag'] = 'SUC';
     $rs['msg'] = '解封用户账号成功';
     Response::sendJSON($rs);
 }