public Client() {
		super("㲥ݱ");
		thread=new Thread(this);
		ince.addActionListener(this);	//󶨰ťinceĵ¼
		stop.addActionListener(this);	//󶨰ťstop¼
		inceAr.setForeground(Color.blue);	//ָıֵɫ
		JPanel north=new JPanel();	//JPanel
		north.add(ince);	//ťӵ
		north.add(stop);
		add(north,BorderLayout.NORTH);
		JPanel center=new JPanel();
		center.setLayout(new GridLayout(1,2));	//岼
		center.add(inceAr);
		center.add(inced);
		add(center,BorderLayout.CENTER);
		validate();
		port=9999;
		try {
			group=InetAddress.getByName("224.255.10.0");	//㲥͵ַ
			socket=new MulticastSocket(port);	//󶨶㲥׽
			socket.joinGroup(group);	//㲥
		}catch(Exception e){
			e.printStackTrace();
		}
		setBounds(100,50,360,380);
		setVisible(true);
	}