def get(self, media_id):
        """
        获取永久素材
        详情请参考
        http://mp.weixin.qq.com/wiki/4/b3546879f07623cb30df9ca0e420a5d0.html

        :param media_id: 素材的 media_id
        :return: 图文素材返回图文列表，其它类型为素材的内容
        """
        def _processor(res):
            if isinstance(res, dict):
                if 'news_item' in res:
                    # 图文素材
                    return res['news_item']
            return res

        res = self._post(
            'material/get_material',
            data={
                'media_id': media_id
            },
            result_processor=_processor
        )
        return res
def get ( self , media_id ) : def _processor ( res ) : if isinstance ( res , dict ) : if 'news_item' in res : return res [ 'news_item' ] return res res = self . _post ( 'material/get_material' , data = { 'media_id' : media_id } , result_processor = _processor ) return res
获取永久素材
        详情请参考
        http://mp.weixin.qq.com/wiki/4/b3546879f07623cb30df9ca0e420a5d0.html

        :param media_id: 素材的 media_id
        :return: 图文素材返回图文列表，其它类型为素材的内容