text: #coding: utf-8
  
  class DCRun(object):
  	def __init__(self):
  		self.status = "invalid"
  		self.target_ips = set([])
  
  	def add_valid_room_ip(self, ip):
  		self.target_ips.add(ip)
  
  	def delete_room_ip(self, ip):
  		try:
  			self.target_ips.remove(ip)
  		finally:
  			pass
  
  	def view_ips(self):
  		
  
  
  	