<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.box{
width: 400px;
margin: 50px auto;
border: 1px solid #ccc;
padding: 50px;
}
#phone{
text-align: center;
margin-bottom: 20px;
border: 1px solid #ccc;
color: #333;
}
.submit,
.disable,
#phone{
display: block;
width: 190px;
height: 35px;
border-radius: 5px;
margin-left:auto;
margin-right:auto;
}
.disable{
border: none;
background-color: #ccc;
color: #fff;
}
.submit{
border: none;
background-color: red;
color: #fff;
}
</style>
</head>
<body>
<div class="box">
<input id="phone" type="text" placeholder="输入领券手机号" maxlength="11">
<button id="submit" class="disable" disabled>确认领取</button>
</div>
<script src="jquery.min.js"></script>
<script>
$(function () {
var $phone = $('#phone');
var $submit = $('#submit');
$phone.on('input propertychange', function () {
var phone = this.value;
if (/^((13[0-9]|15[0-9]|17[0-9]|18[0-9])+\d{8})$/.test(phone)) {
$submit.removeClass('disable').addClass('submit').removeAttr('disabled');
} else {
$submit.removeClass('submit').addClass('disable').attr('disabled', 'disabled');
}
});
});
</script>
</body>
</html>
var isMobile=/^(?:13\d|15\d|18\d)\d{5}(\d{3}|\*{3})$/; //手机号码验证规则
var isPhone=/^((0\d{2,3})-)?(\d{7,8})(-(\d{3,}))?$/; //座机验证规则
var dianhua = $("#dianhua").val(); //获得用户填写的号码值 赋值给变量dianhua
if(!isMobile.test(dianhua) && !isPhone.test(dianhua)){ //如果用户输入的值不同时满足手机号和座机号的正则
alert("请正确填写电话号码,例如:13415764179或0321-4816048"); //就弹出提示信息
$("#dianhua").focus(); //输入框获得光标
return false; //返回一个错误,不向下执行
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