截取数字

  String str = "xxx第47297章33";        String regex = "\\d*";        Pattern p = Pattern.compile(regex);        Matcher m = p.matcher(str);        while (m.find()) {            if (!"".equals(m.group()))                System.out.println("come here:" + m.group());        }

打印结果为

come here:47297come here:33