text: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  import click
  
  
  @click.command()
  @click.option('--host', default='8.8.8.8', help='target host')
  @click.option('--port', default=53, help='target port')
  def scan(host, port):
      click.echo("scan %s:%s" % (host, port))
  
  
  if __name__ == '__main__':
      scan()