text: #!/usr/bin/env python
  # -*- encoding: utf-8 -*-
  """
  Topic: sample
  Desc : yaml文件解析
  """
  import yaml
  import os.path as op
  import sys
  
  def main(key):
      # 相对于当前脚本文件的路径op.split(op.realpath(__file__))[0]
      with open(op.join(op.split(op.realpath(__file__))[0], 'ip_config.yml'),
                encoding='utf-8') as f:
          configs = yaml.load(f)
      ip_value = configs[key]
      if type(ip_value) is str:
          print(configs[key])
      else:
          for ip in configs[key]:
              print(ip, end=' ')
  
  if __name__ == '__main__':
      main(sys.argv[1])
  
  