public void go()
	{
		frame = new Frame("Frame Test borderlayout title !");
		
		bn = new Button("Bn");
		bs = new Button("Bs");
		bw = new Button("Bw");
		be = new Button("Be");
		bc = new Button("Bc");
		
		frame.add(bn,BorderLayout.NORTH);
		frame.add(bs,BorderLayout.SOUTH);
		frame.add(be,BorderLayout.EAST);
		frame.add(bw,BorderLayout.WEST);
		frame.add(bc,BorderLayout.CENTER);
		
//		frame.setSize(550,400);
		
		frame.pack();   //根据布局自动调节Size的大小
		
		frame.setVisible(true);
	}