java利用正则截取字符串中的数字

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

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