public static void main(String[] args) {
        String url = "D:\\文件夹\\122.139.57.172\\2012-05-23\\yhetgame.com.txt.all\\yhetgame.com.cn.info.net";
        Matcher m = Pattern.compile("\\\\([^\\\\]+)$").matcher(url);
        while(m.find()){
            System.out.println(m.group(1));
        }
    }