code: def get_lrc(self, playingsong):
          
          try:
              url = "https://douban.fm/j/v2/lyric"
              postdata = {
                  'sid': playingsong['sid'],
                  'ssid': playingsong['ssid'],
              }
              s = requests.session()
              response = s.get(url, params=postdata, headers=HEADERS)
  
              # 把歌词解析成字典
              lyric = json.loads(response.text, object_hook=decode_dict)
              logger.info(lyric)
              if lyric.get('code', None) == 1998:
                  logger.info('lrc API access rate limit has been exceeded')
                  return {}
              elif lyric.get('code', None) == 107:
                  logger.info('lrc API invalid_request_uri')
                  return {}
              lrc_dic = lrc2dict(lyric['lyric'])
  
              # 原歌词用的unicode,为了兼容
              for key, value in iteritems(lrc_dic):
                  # lrc_dic[key] = value.decode('utf-8')
                  lrc_dic[key] = value
              if lrc_dic:
                  logger.debug('Get lyric success!')
              return lrc_dic
          except requests.exceptions.RequestException:
              logger.error('Get lyric failed!')
              return {}
docs: 获取歌词
  
          如果测试频繁会发如下信息:
          {'msg': 'You API access rate limit has been exceeded.
                   Contact api-master@douban.com if you want higher limit. ',
           'code': 1998,
           'request': 'GET /j/v2/lyric'}