这篇文章主要介绍了原生js如何实现无缝轮播图效果，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。
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请看代码
无缝轮播图-原生js封装
/*公共*/
html{
height:100%;
}
body, div, dl, dt, dd, ul, ol, li, h2, h3, h4, h5, h6, h7, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td {
margin: 0;
padding: 0
}
body{
position: relative;
min-height:100%;
font-size:14px;
font-family: Tahoma, Verdana,"Microsoft Yahei";
color:#333;
}
a{
text-decoration: none;
color:#333;
}
.header{
width: 960px;
padding-top: 15px;
margin: 0 auto;
line-height: 30px;
text-align: right;
}
.header a{
margin: 0 5px;
}
.main{
width:960px;
margin: 50px auto 0;
}
.code{
border:1px dashed #e2e2e2;
padding:10px 5px;
margin-bottom:25px;
}
pre {
font-family: "Microsoft Yahei",Arial,Helvetica;
white-space: pre-wrap; /*css-3*/
white-space: -moz-pre-wrap; /*Mozilla,since1999*/
white-space: -pre-wrap; /*Opera4-6*/
white-space: -o-pre-wrap; /*Opera7*/
word-wrap: break-word; /*InternetExplorer5.5+*/
}
.example{
padding-top:40px;
margin-bottom:90px;
}
.example .call{
padding:18px 5px;
background:#f0f5f8;
}
.example h3{
padding-top:20px;
margin-bottom:7px;
}
.example table {
width:100%;
table-layout:fixed;
border-collapse: collapse;
border-spacing: 0;
border: 1px solid #cee1ee;
border-left: 0;
}
.example thead {
border-bottom: 1px solid #cee1ee;
background-color: #e3eef8;
}
.example tr {
line-height: 24px;
font-size: 13px;
}
.example tr:nth-child(2n) {
background-color: #f0f5f8;
}
.example tr th,.example tr td {
border-left: 1px solid #cee1ee;
word-break: break-all;
word-wrap: break-word;
padding:0 10px;
font-weight: normal;
}
.example tr th {
color: #555;
padding-top: 2px;
padding-bottom: 2px;
text-align: left;
}
/*公共*/
.bannerha-container{
width: 800px;
height: 300px;
margin: 20px auto;
overflow: hidden;
position: relative;
}
.bannerha-wrapper{
width: 100%;
height: 100%;
position: absolute;
display: -webkit-box;
display: box;
}
.bannerha-slide{
background: #ccc;
list-style: none;
width: 100%;
height: 100%;
text-align: center;
font-size: 18px;
display: -webkit-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
-webkit-box-pack: center;
-ms-flex-pack: center;
-webkit-justify-content: center;
justify-content: center;
-webkit-box-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;
}
.bannerha-pagination{
position: absolute;
text-align: center;
z-index: 10;
bottom: 10px;
left: 0;
width: 100%;
}
.bannerha-pagination-bullet{
width: 8px;
height: 8px;
display: inline-block;
border-radius: 100%;
background: #fff;
opacity: .5;
margin: 0 4px;
}
.bannerha-pagination-bullet-active{
opacity: 1;
background: #ff0;
}
.bannerha-button{
width: 100px;
height: 100%;
position: absolute;
top: 0;
background-color: #333;
z-index: 1;
cursor: pointer;
filter: alpha(opacity:20);
opacity: 0.2;
-webkit-transition: all .2s ease-in;
-moz-transition: all .2s ease-in;
-ms-transition: all .2s ease-in;
-o-transition: all .2s ease-in;
transition: all .2s ease-in;
}
.bannerha-button.active{
filter: alpha(opacity:60);
opacity: 0.6;
}
.bannerha-button-prev{
left:0;
}
.bannerha-button-next{
right:0;
}
/*封装代码*/
(function() {
var Bannerha = function(e, opts) {
var self = this;
var defaults = {
circle: true,
speeds: 20,
pnBtn: true,
autoPlay: true,
times: 3000
}
opts = opts || {};
for (var w in defaults) {
if ("undefined" == typeof opts[w]) {
opts[w] = defaults[w];
}
}
this.params = opts;
this.container = r(e);
if (this.container.length > 1) {
var x = [];
return this.container.each(function() {
x.push(new Bannerha(this, opts))
}), x
}
this.containers = this.container[0];
this.oUl = this.container.find(".bannerha-wrapper")[0];
this.liW = this.oUl.children[0].offsetWidth;
this.len = this.oUl.children.length;
this.flag = true;
this.num = 1;
this.timer = null;
this.timers = null;
this.init();
}
Bannerha.prototype = {
init: function() {
var self = this;
this.clone();
if (this.params.pnBtn) {
this.pnBtn();
}
if (this.params.circle) {
this.circle();
}
if (this.params.autoPlay) {
this.plays();
this.boxmove()
}
},
boxmove: function() {
var self = this;
this.container[0].addEventListener('mouseout', function(e) {
self.plays();
}, false);
this.container[0].addEventListener('mouseover', function(e) {
self.stops();
}, false);
},
plays: function() {
var self = this;
this.timers = setInterval(function() {
self.go(-self.liW);
}, self.params.times);
},
stops: function() {
clearInterval(this.timers)
},
clone: function() {
var fir = this.oUl.children[0].cloneNode(true),
last = this.oUl.children[this.len - 1].cloneNode(true);
this.oUl.appendChild(fir);
this.oUl.insertBefore(last, this.oUl.children[0]);
this.len = this.oUl.children.length;
this.oUl.style.left = -this.liW + 'px';
},
pnBtn: function() {
var self = this;
this.container.append('
