废话不多说了，直接给大家贴代码了，具体代码所示：
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<title>仿支付宝密码框-移动端测</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
body {
padding: 50px;
}
.clearfix:after {
clear: both;
}
.clearfix:before,
.clearfix:after {
content: " ";
display: table;
}
.alieditcontainer {
position: relative;
}
.sixdigitpassword {
position: absolute;
left: -222px;
top: 0;
width: 1000px;
height: 26px;
color: #fff;
font-size: 12px;
-webkit-box-sizing: content-box;
box-sizing: content-box;
-webkit-user-select: initial;
outline: 'none';
z-index: 999;
opacity: 0;
filter: alpha(opacity=0);
}
.sixdigitpassword-box {
cursor: text;
background: #fff;
outline: none;
position: relative;
padding: 8px 0;
height: 15px;
border: 1px solid #cccccc;
border-radius: 2px;
}
.sixdigitpassword-box i {
float: left;
display: block;
padding: 4px 0;
height: 7px;
border-left: 1px solid #cccccc;
}
.sixdigitpassword-box .active {
background: url('password-blink.gif') no-repeat center center;
}
.sixdigitpassword-box b {
display: block;
margin: 0 auto;
width: 7px;
height: 7px;
overflow: hidden;
visibility: hidden;
background: url('passeord-dot.png') no-repeat;
}
.sixdigitpassword-box span {
position: absolute;
display: block;
left: 0px;
top: 0px;
height: 30px;
border: 1px solid rgba(82, 168, 236, .8);
border: 1px solid #00ffff\9;
border-radius: 2px;
visibility: hidden;
-webkit-box-shadow: inset 0px 2px 2px rgba(0, 0, 0, 0.75), 0 0 8px rgba(82, 168, 236, 0.6);
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
.ui-securitycore .ui-form-item .ui-form-explain {
margin-top: 8px;
}
.i-block {
display: inline-block;
}
.six-password {
position: relative;
height: 33px;
width: 182px;
overflow: hidden;
vertical-align: middle;
}
}
</style>
</head>
<body>
<form action="" method="post" name="paypassword" id="form_paypsw">
<div id="paypassword_container" class="alieditcontainer clearfix" data-busy="0">
<label for="i_paypassword" class="i-block">支付密码：</label><br />
<div class="i-block" data-error="i_error">
<div class="i-block six-password">
<input class="i-text sixdigitpassword" id="paypassword_rsainput" type="tel" autocomplete="off" required="required" value="" name="paypassword_rsainput" data-role="sixdigitpassword" tabindex="" maxlength="6" minlength="6" aria-required="true">
<div tabindex="0" class="sixdigitpassword-box" style="width: 180px;">
<i style="width: 29px; border-color: transparent;" class=""><b style="visibility: hidden;"></b></i>
<i style="width: 29px;"><b style="visibility: hidden;"></b></i>
<i style="width: 29px;"><b style="visibility: hidden;"></b></i>
<i style="width: 29px;"><b style="visibility: hidden;"></b></i>
<i style="width: 29px;"><b style="visibility: hidden;"></b></i>
<i style="width: 29px;"><b style="visibility: hidden;"></b></i>
<span style="width: 29px; left: 0px; visibility: hidden;" id="cardwrap" data-role="cardwrap"></span>
</div>
</div>
</div>
</div>
</form>
<button class="passbtn" style="margin-top:20px;">确认</button>
<script src="../js/jquery-2.1.0.js" type="text/javascript" charset="utf-8"></script>
<script src="jquery-validate.js" type="text/javascript"></script>
<script type="text/javascript">
var _formpay = $('#form_paypsw');
_formpay.validate({
rules: {
'paypassword_rsainput': {
'minlength': 6,
'maxlength': 6,
required: true,
digits: true
}
}
});
var paypassword = $("#paypassword_container"),
_this = paypassword.find('i'),
k = 0,
j = 0,
password = '',
_cardwrap = $('#cardwrap');
//点击隐藏的input密码框,在6个显示的密码框的第一个框显示光标
paypassword.on('focus', "input[name='paypassword_rsainput']", function() {
var _this = paypassword.find('i');
if(paypassword.attr('data-busy') === '0') {
//在第一个密码框中添加光标样式
_this.eq(k).addclass("active");
_cardwrap.css('visibility', 'visible');
paypassword.attr('data-busy', '1');
}
});
//change时去除输入框的高亮，用户再次输入密码时需再次点击
paypassword.on('change', "input[name='paypassword_rsainput']", function() {
_cardwrap.css('visibility', 'hidden');
_this.eq(k).removeclass("active");
paypassword.attr('data-busy', '0');
}).on('blur', "input[name='paypassword_rsainput']", function() {
_cardwrap.css('visibility', 'hidden');
_this.eq(k).removeclass("active");
paypassword.attr('data-busy', '0');
});
//使用keyup事件，绑定键盘上的数字按键和backspace按键
paypassword.on('keyup', "input[name='paypassword_rsainput']", function(e) {
var e = (e) ? e : window.event;
//键盘上的数字键按下才可以输入
if(e.keycode == 8 || (e.keycode >= 48 && e.keycode <= 57) || (e.keycode >= 96 && e.keycode <= 105)) {
k = this.value.length; //输入框里面的密码长度
l = _this.size(); //6
for(; l--;) {
//输入到第几个密码框，第几个密码框就显示高亮和光标（在输入框内有2个数字密码，第三个密码框要显示高亮和光标，之前的显示黑点后面的显示空白，输入和删除都一样）
if(l === k) {
_this.eq(l).addclass("active");
_this.eq(l).find('b').css('visibility', 'hidden');
} else {
_this.eq(l).removeclass("active");
_this.eq(l).find('b').css('visibility', l < k ? 'visible' : 'hidden');
}
if(k === 6) {
j = 5;
} else {
j = k;
}
$('#cardwrap').css('left', j * 30 + 'px');
}
} else {
//输入其他字符，直接清空
var _val = this.value;
this.value = _val.replace(/\d/g, '');
}
});
//获取密码
$('.passbtn').on('click', function() {
var reg = new regexp("^[0-9]*$");//验证数字
var pass = $('#paypassword_rsainput').val();
/*pc端测试：主键盘的数字对应的字符对应的keycode相同，所以也可显示到框中。但是input中value没有数字，判断一下非空即可。
*移动端测试： *和#都可输入，需正则验证一下非法字符
* */
if(!pass){
alert('密码为空，请输入密码');
}else if(pass.length < 6){
alert('密码长度为6位');
}else if(!reg.test(pass)){
alert("密码含有非法字符，请重新输入");
}else{
alert(pass);
}
});
</script>
</body>
</html>
需要的资源：
1、jquery-2.1.0.js—-版本不限
2、jquery-validate.js—-插件
插件代码下载地址：
效果图：
总结
以上所述是www.887551.com给大家介绍的html5仿支付宝密码框的实现代码，希望对大家有所帮助
黄山市民网：https://www.huangshanshimin.com/
