<html> <head> <script> function verifyAddress(obj) { var email = obj.email.value; var pattern = /^([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/; flag = pattern.test(emai
import java.util.Scanner; public class StringTest { public static void main(String[] args) { int back = 1; Scanner input =new Scanner(System.in); do{ //设置循环方法,直至输入正确为止
function check(){ var strText=$("#email").val(); var strReg=/^\w+((-\w+)|(\.\w+))*\@{1}\w+\.{1}\w{2,4}(\.{0,1}\w{2}){0,1}/ig; var r=strText.search(strReg); if (r==-1){ alert("留言邮箱格式错误"); return false; } }