$(document).ready(function() {

$('#account').blur(function() {

var account = $(this).val(); //获取手机号或者邮箱

var num = /^1[34578][0-9]{9}/; //电话号码的正则

var mail = /[a-zA-Z0-9]{1,10}@[a-zA-Z0-9]{1,5}\.[a-zA-Z0-9]{1,5}/; //邮箱的正则

var isNum = num.test(account);

var isEmail = mail.test(account);

if(!isNum && !isEmail){

alert("请正确填写手机号码或者邮箱！");

$("#account").val("");

}

});

});