java使用replaceAll的正则表达式替换，非常好用

package com.blog.test;import java.util.regex.Matcher;import java.util.regex.Pattern;public class TEst {public static void main(String[] args) {String s="<abc>>213<<";//        String regex="[\\s\\S]*";                String regex=">+?";                Pattern pt=Pattern.compile(regex);        Matcher mt=pt.matcher(s);        while(mt.find())        {            System.out.println(mt.group());        }        s = s.replaceAll("[\\s\\S]*>>", "");        s = s.replaceAll("<<", "");        System.out.println(s);}}