IE compatibility has not been handled, I don't know much to be sure, I hope to give some advice
Ideas:
1. js obtains the button group object to give a click event, such as btns=(). Before traversing the event, get the index of the current object: btns[i].index=i;
2. Match index as the DOM object to be displayed
3. During the click process, you need to switch class and first determine whether it contains a specified class. If there is one, delete it. If there is one, add the specified class. Note: if(!null) is true.
4. Onmouseover
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="css/">
<script src="js/"></script>
</head>
<body>
<h3>javascriptSwitch effect</h3>
<section>
<div class="baner_parent">
<div class="will_left btn_left">
<ul>
<li data-i="0" class="selected js_btn"><img src="img/"><span>Ferrari</span></li>
<li data-i="1" class="js_btn"><img src="img/"><span>Benz</span></li>
<li data-i="2" class="js_btn"><img src="img/"><span>BMW</span></li>
<li data-i="3" class="js_btn"><img src="img/"><span>Audi</span></li>
</ul>
</div>
<div class="will_left banner_right">
<!--Ferrari-->
<div class="banner_lists">
<img src="img/" alt="">
<ul>
<li class="will_left btn selected">Ferrari1</li>
<li class="will_left btn">Ferrari2</li>
<li class="will_left btn">Ferrari3</li>
<li class="will_left btn">Ferrari4</li>
</ul>
</div>
<!--Benz-->
<div class="banner_lists">
<img src="img/" alt="">
<ul>
<li class="will_left btn selected">Benz1</li>
<li class="will_left btn">Benz2</li>
<li class="will_left btn">Benz3</li>
<li class="will_left btn">Benz4</li>
</ul>
</div>
<!--BMW-->
<div class="banner_lists">
<img src="img/" alt="">
<ul>
<li class="will_left btn selected">BMW1</li>
<li class="will_left btn">BMW2</li>
<li class="will_left btn">BMW3</li>
<li class="will_left btn">BMW4</li>
</ul>
</div>
<!--Audi-->
<div class="banner_lists">
<img src="img/" alt="">
<ul>
<li class="will_left btn selected">Audi1</li>
<li class="will_left btn">Audi2</li>
<li class="will_left btn">Audi3</li>
<li class="will_left btn">Audi4</li>
</ul>
</div>
</div>
</div>
</section>
</body>
</html>
CSS
*{
list-style: none;
border:none;
text-decoration: none;
margin:0;
padding:0;
box-sizing: border-box;
}
h3{
text-align: center;
color: dimgrey;
}
.baner_parent{
width: 1000px;
margin:0 auto;
}
.will_left{
float: left;
}
.will_right{
float: right;
}
.btn_left ul li{
text-align: center;
width: 160px;
height:98px;
background-color: darkgrey;
padding: 13px 0;
cursor: pointer;
-webkit-transition:all .5s ease-out;
-moz-transition:all .5s ease-out;
-o-transition:all .5s ease-out;
-ms-transition:all .5s ease-out;
transition:all .5s ease-out;
}
.btn_left ul {
background-color: cornflowerblue;
}
.btn_left ul li:not(:nth-child(4)){
border-bottom: 1px solid dimgrey;
}
.btn_left ul li img{
width: 50px;
height: 50px;
}
.btn_left ul li span{
display:block;
}
.banner_right,.banner_lists img{
width: 800px;
height: 391px;
position: relative;
}
.banner_lists{
position: absolute;
height: 391px;
}
.banner_lists:not(:nth-child(1)){
display: none;
}
.banner_lists ul{
overflow: hidden;
position: absolute;
bottom: 0;
left: 0;
}
.btn{
height: 33px;
width: 200px;
border-right: 1px solid #000;
margin-top: -3px;
text-align: center;
line-height: 33px;
background-color: darkgrey;
opacity: .8;
cursor: pointer;
-webkit-transition:all .5s ease-out;
-moz-transition:all .5s ease-out;
-o-transition:all .5s ease-out;
-ms-transition:all .5s ease-out;
transition:all .5s ease-out;
}
.btn:hover,.{
background-color: cornflowerblue;
}
JS
/**
* Created by Administrator on 2016/4/30 0030.
* blog:
* IE is not supported
*/
=function(){
var arrFR = ['img/','img/','img/','img/'];
var arrBC = ['img/','img/','img/','img/'];
var arrBM = ['img/','img/','img/','img/'];
var arrAD = ['img/','img/','img/','img/'];
var array = [arrFR,arrBC,arrBM,arrAD];
var btns=('js_btn');
var divList=('banner_lists');
// Brand switch for(var i=0;i<;i++){
btns[i].index=i;
btns[i].onclick=showItems;
}
//ClassName switch, does it contain the specified class? function hasClass(elem,cls){
return (new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}
// If not, add the specified class function addClass(elem,cls){
if(!hasClass(elem,cls)){
+=" "+cls;
}
}
// If there is one, remove the specified class function removeClass(elem,cls){
if(hasClass(elem,cls)){
var reg=new RegExp('(\\s|^)'+cls+'(\\s|$)');
=(reg,"");
}
}
//ClassName switch, remove all function removeAll(obj){
for (var i = 0; i < ; i++) {
removeClass(obj[i],"selected");
}
}
// DIV display switching function showItems(){
removeAll(btns);
addClass(this,"selected");
for (var s = 0; s< ; s++) {
divList[s].="none";
divList[].="block";
}
willHover();
}
// The effect of the switch button on the right function willHover(sum){
var hoverbtns=divList[sum].getElementsByClassName('btn');
var img=divList[sum].getElementsByTagName('img')[0];
for (var i = 0; i < ; i++) {
hoverbtns[i].index=i;
hoverbtns[i].onmouseover=function(){
removeAll(hoverbtns);
addClass(this,"selected");
var imgSrc=array[sum][];
=array[sum][];
}
}
}
// The default is to switch for the first time willHover(0);
};
The above javascript list switching [Implementation Code] is all the content I have shared with you. I hope you can give you a reference and I hope you can support me more.