摘要： Java代码public class TryDotRegEx { public static void main(String[] args) { // TODO Auto-generated method stub String str = "111.3.22.11"; str=str.replaceAll("(^|\\.)(\\d)(\\.|$)","$100$2$3"); str=str.replaceAll("(^|\\.)(\\d{2})(\\.|$)","$10$2$3"); str 阅读全文