public function AddLongSource($appIndex = 10)
{
$data = array('type' => 'image', 'media' => $_SERVER['DOCUMENT_ROOT'] . "/statics/images/2007119122519868_2.jpg");
$assesstoken = D("WxAccessToken")->getAccessToken($appIndex);
$AppKey = Platform::$AppArr[$appIndex];
$wechat = new WeChat($AppKey['AppID'], $AppKey['AppSecret']);
return $wechat->AddLongSource($assesstoken, $data);
}