public void keyPressed(KeyEvent e) {
		if( e.getKeyCode() == KeyEvent.VK_A || e.getKeyCode() == KeyEvent.VK_LEFT){
			panel.setOption(0) ;
			this.panel.repaint();
		}else if(e.getKeyCode() == KeyEvent.VK_D || e.getKeyCode() == KeyEvent.VK_RIGHT){
			panel.setOption(1) ;
			this.panel.repaint();
		}else if(e.getKeyCode() == KeyEvent.VK_ENTER){
			System.out.println("选择了...");
			this.setVisible(false);
			this.frame.dialogOption( this.panel.option);//ifGameExit
		}
	}