text: #!/usr/bin/env python  
  # encoding: utf-8  
  
  """ 
  @version: v1.0 
  @author: xag 
  @license: Apache Licence  
  @contact: xinganguo@gmail.com 
  @site: http://www.xingag.top 
  @software: PyCharm 
  @file: models.py 
  @time: 2018/7/23 21:44 
  @description：TODO
  """
  
  