code: def download_financialzip():
      
      result = get_filename()
      res = []
      for item, md5 in result:
          if item in os.listdir(download_path) and md5==QA_util_file_md5('{}{}{}'.format(download_path,os.sep,item)):
              
              print('FILE {} is already in {}'.format(item, download_path))
          else:
              print('CURRENTLY GET/UPDATE {}'.format(item[0:12]))
              r = requests.get('http://down.tdx.com.cn:8001/fin/{}'.format(item))
  
              file = '{}{}{}'.format(download_path, os.sep, item)
  
              with open(file, "wb") as code:
                  code.write(r.content)
              res.append(item)
      return res
docs: 会创建一个download/文件夹