public static void saveFile(Vector<Vector<Object>> linkMans) {
		JFileChooser fileChooser = new JFileChooser();
		Calendar cal = Calendar.getInstance();
		File file = new File( "通讯录" +  cal.get(Calendar.DATE) + "-" + cal.get(Calendar.HOUR) + ".dat");
		fileChooser.setSelectedFile(file);
		if(fileChooser.showSaveDialog(null) == 0){	
			try {
				file = fileChooser.getSelectedFile();
				if(!file.exists())
					file.createNewFile();
			    FileWriter writer = new FileWriter(file);
			    for(int i=0; i<linkMans.size(); i++){
			    	String content = "";
			    	for(int j = 0; j < 5; j++)
			    		content += linkMans.elementAt(i).elementAt(j) + " ";
			    	content += "\r\n";
			    	writer.write(content);
			    }
			    writer.close();
			} catch (Exception e) {
				JOptionPane.showMessageDialog(null, "写入文件错误", "提醒", JOptionPane.ERROR_MESSAGE);
			}	
		}
	}