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手機號碼/身份證號碼中間幾位的隱藏

String phone2 = "15988888888";
System.out.println(phone2.substring(0,3) + "****" + phone2.substring(7, phone2.length()));

String idcardNO = "130503670401001";//15位身份證
String idcardNO1 = "130503196704010012";//18位身份證
System.out.println(idcardNO.substring(0,3) + "********" + idcardNO.substring(11, idcardNO.length()));

System.out.println(idcardNO1.substring(0,3) + "***********" + idcardNO1.substring(14, idcardNO1.length()));