本文实例为大家分享了js实现缓动动画的具体代码，供大家参考，具体内容如下
利用定时器来控制元素的offsetLeft的值，offsetLeft = 开始位置 （最终位置 - 开始位置）* 缓动系数
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
* {
margin: 0;
padding: 0;
border: none;
list-style: none;
}
body {
background-color: pink;
}
#nav {
width: 900px;
height: 63px;
background: url("images/doubleOne.png") no-repeat right center #fff;
margin: 0 auto;
margin-top: 50px;
border-radius: 5px;
position: relative;
}
#nav ul {
line-height: 70px;
}
#nav ul li {
float: left;
height: 63px;
width: 88px;
text-align: center;
cursor: pointer;
position: relative;
}
#t_mail {
width: 88px;
height: 63px;
background: url("images/tMall.png") no-repeat;
position: absolute;
}
</style>
</head>
<body>
<nav id="nav">
<span id="t_mail"></span>
<ul>
<li>双11狂欢</li>
<li>服装会场</li>
<li>数码家电</li>
<li>母婴童装</li>
<li>手机会场</li>
<li>美妆会场</li>
<li>家居建材</li>
<li>进口会场</li>
<li>飞猪旅行</li>
</ul>
</nav>
<script>
window.onload = function () {
var nav = $('nav');
var t_mall = nav.children[0];
var ul = nav.children[1];
var allLis = ul.children;
var beginX = 0;
for (var i = 0; i < allLis.length; i ) {
var li = allLis[i];
li.onmouseover = function () {
end = this.offsetLeft;
}
li.onmousedown = function () {
beginX = this.offsetLeft;
}
li.onmouseout = function () {
end = beginX;
}
}
var begin = 0, end = 0;
setInterval(function () {
begin = begin (end - begin) / 10;
t_mall.style.left = begin 'px';
}, 10)
function $(id) {
return typeof id ? document.getElementById(id) : null;
}
}
</script>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持Devmax。