java最新手机号正则校验

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public static boolean CheckMobilePhoneNum(String phoneNum) {     String regex = "^(1[3-9]\\d{9}$)";     if (phoneNum.length() == 11) {          Pattern p = Pattern.compile(regex);          Matcher m = p.matcher(phoneNum);          if (m.matches()) {              return true;          }     }     return false;     } }