code: def get_random_areanote(zone):
      
      # 获取省份下的地区信息
      province = str(zone)[:2]
      areanote_list = IdCard.get_areanote_info(province)
      # 选出省份名称
      province_name_list = [item for item in areanote_list if item[0] == str(zone)]
  
      if not (areanote_list and province_name_list):
          raise ValueError('zone error, please check and try again')
  
      # 只选取下辖区域
      areanote_list.remove(province_name_list[0])
  
      province_name = province_name_list[0][-1]
      random_areanote = random.choice(areanote_list)
      full_areanote = random_areanote[-1]
      return full_areanote.split(province_name)[-1]
docs: 省份行政区划代码，返回下辖的随机地区名称
  
      :param:
          * zone: (string) 省份行政区划代码 比如 '310000'
  
      :returns:
          * random_areanote: (string) 省份下辖随机地区名称
  
      举例如下::
  
          print('--- fish_data get_random_areanote demo ---')
          print(cardbin_get_bank_by_name(310000))
          print('---')
  
      输出结果::
  
          --- fish_data get_random_areanote demo ---
          徐汇区
          ---