java、jquery、验证正则表达式的方法
先介绍java验证正则表达式的方法，一共有两种，代码如下：
package com.ustc.nhss.test;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * @说明：java验证正则表达的式的两种方法 * */public class Regular {public static void main(String args[]) { //第一种Pattern p = Pattern.compile("^13\\d\\d\\d\\d\\d\\d\\d\\d\\d@e|(^15\\d\\d\\d\\d\\d\\d\\d\\d\\d@e)|(^18\\d\\d\\d\\d\\d\\d\\d\\d\\d@e)");String s = "18668327308@e";Matcher m = p.matcher(s);if (m.find()) {String x = s.substring(0, 11);System.out.println("{" + x + "}");} else {System.out.println("xxx");}String t = "^13\\d\\d\\d\\d\\d\\d\\d\\d\\d@e|(^15\\d\\d\\d\\d\\d\\d\\d\\d\\d@e)|(^18\\d\\d\\d\\d\\d\\d\\d\\d\\d@e)"; //第二种if(s.matches(t)){String x = s.substring(0, 11);System.out.println("{" + x + "}");};}}以下为jquery验证ip的实例：
if(!valicateIp(deviceIp)){alert("请输入合法的IP");return false;}//检查IP的合法性function valicateIp(ip){ var pattern = /((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)/; return pattern.test(ip);}