def webwxsync(self):
        """
        @brief      sync the messages
        @return     Dict{}
        """
        url = self.wx_conf['API_webwxsync'] + \
            '?sid=%s&skey=%s&pass_ticket=%s' % (
                self.sid, self.skey, self.pass_ticket
            )
        params = {
            'BaseRequest': self.base_request,
            'SyncKey': self.synckey_dic,
            'rr': ~int(time.time())
        }
        dic = post(url, params)

        if dic['BaseResponse']['Ret'] == 0:
            self.make_synckey(dic)
        return dic

        @brief      sync the messages
        @return     Dict{}
        
wxbot_project_py2.7/wechat/wechat_apis.py