def query_download_tasks(self, task_ids, operate_type=<NUM_LIT:1>, **kwargs):
params = {<EOL>'<STR_LIT>': '<STR_LIT:U+002C>'.join(map(str, task_ids)),<EOL>'<STR_LIT>': operate_type,<EOL>}<EOL>url = '<STR_LIT>'.format(BAIDUPAN_SERVER)<EOL>return self._request('<STR_LIT>', '<STR_LIT>', url=url,<EOL>extra_params=params, **kwargs)<EOL>
根据任务ID号，查询离线下载任务信息及进度信息。

        :param task_ids: 要查询的任务 ID字符串 列表
        :type task_ids: list or tuple
        :param operate_type:
                            * 0：查任务信息
                            * 1：查进度信息，默认为1

        :return: requests.Response

            .. note::
                返回正确时返回的 Reponse 对象 content 中的数据结构

                给出一个范例

                {
                    "task_info":
                        {"70970481":{
                                "status":"0",

                                "file_size":"122328178",

                                "finished_size":"122328178",

                                "create_time":"1391620757",

                                "start_time":"1391620757",

                                "finish_time":"1391620757",

                                "save_path":"\/",

                                "source_url":"\/saki-nation04gbcn.torrent",

                                "task_name":"[KTXP][Saki-National][04][GB_CN][720p]",

                                "od_type":"2",

                                "file_list":[
                                    {
                                        "file_name":"[KTXP][Saki-National][04][GB_CN][720p].mp4",

                                        "file_size":"122328178"
                                    }
                                ],

                                "result":0

                                }
                        },

                        "request_id":861570268

                }