小编给大家分享一下js如何实现楼层滚动效果，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
html代码：
<div >无意义的文本</div> <div class="layerbox"> <div class="layer num1">第一层</div> <div class="layer num2">第二层</div> <div class="layer num3">第三层</div> <div class="layer num4">第四层</div> </div> <div class="nav"> <ul> <li>1F</li> <li>2F</li> <li>3F</li> <li>4F</li> </ul> </div>
css代码：
* {
margin: 0;
padding: 0;
}
.layer {
height: 300px;
font-size: 80px;
color: white;
text-align: center;
}
.num1 {
background-color: red;
}
.num2 {
background-color: blue;
}
.num3 {
background-color: yellow;
}
.num4 {
background-color: green;
}
.nav {
position: fixed;
right: 50px;
bottom: 400px;
background-color: pink;
}
ul {
list-style: none;
}
ul li {
padding: 10px;
width: 50px;
height: 50px;
line-height: 50px;
text-align: center;
border: 1px solid #000;
}
ul li.active {
background-color: crimson;
}js代码：
<script>
var layers = document.querySelectorAll(".layer")
var lis = document.querySelectorAll('li')
for (let i = 0; i < lis.length; i++) {
const li = lis[i]
li.onclick = function (e) {
//页面的偏移量，原来的页面滚动的距离
var scrollTop = document.documentElement.scrollTop
var offsetTop = layers[i].offsetTop
if (scrollTop > offsetTop) {
// 滚动条向上移动
var timer = setInterval(function () {
if (scrollTop > offsetTop) {
scrollTop -= 40
if (scrollTop - offsetTop < 40) {
// 如果最后一洞的距离小于40时，直接设置偏移量为0
window.scrollTo(0, offsetTop)
} else {
window.scrollTo(0, scrollTop)
}
} else {
clearInterval(timer)
}
}, 50)
} else {
// 滚动条向下移动
// scrollTop <= offsetTop
var timer = setInterval(function () {
if (scrollTop < offsetTop) {
scrollTop += 40
if (offsetTop - scrollTop < 40) {
window.scrollTo(0, offsetTop)
} else {
window.scrollTo(0, scrollTop)
}
} else {
clearInterval(timer)
}
}, 50);
}
}
}
window.onscroll = function (e) {
var scrollTop = document.documentElement.scrollTop || document.body.scrollTop
layers.forEach(function (v, i) {
if (v.clientHeight + v.offsetTop > scrollTop && scrollTop > v.offsetTop) {
// 滚动的楼层到达顶部范围，离开消失
lis[i].classList.add("active")
} else {
lis[i].classList.remove("active")
}
})
}
</script>小编再为大家分享一段代码：jquery楼层滚动特效
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jq 楼层滚动效果</title>
<style>
* {
margin: 0;
padding: 0;
}
i {
font-style: normal;
}
ul,
li,
dl,
ol{
list-style: none;
}
#LoutiNav {
border: 1px solid gray;
width: 30px;
position: fixed;
top: 150px;
left: 50px;
display: none;
}
#LoutiNav li {
width: 30px;
height: 30px;
border-bottom: 1px solid gray;
line-height: 30px;
text-align: center;
cursor: pointer;
}
#LoutiNav span {
display: none;
}
#LoutiNav .active {
background: white;
color: darkred;
}
#LoutiNav li:hover span {
display: block;
font-size: 12px;
background: darkred;
color: white;
}
#LoutiNav li:hover i {
display: none;
}
#goTop {
width: 40px;
height: 40px;
line-height: 40px;
text-align: center;
background: gray;
position: fixed;
bottom: 30px;
right: 30px;
cursor: pointer;
border-radius: 5px;
display: none;
}
#goTop:hover {
background: darkred;
color: white;
}
#goTop:hover span {
display: block;
}
#erweima {
width: 130px;
height: 130px;
background: palegreen;
display: none;
position: absolute;
right: 46px;
bottom: 5px;
line-height: 130px;
text-align: center;
font-size: 20px;
border-radius: 10px;
}
#header {
height: 200px;
background: palegoldenrod;
text-align: center;
line-height: 200px;
font-size: 72px;
margin: 0 auto;
}
.louceng {
height: 810px;
text-align: center;
line-height: 610px;
font-size: 120px;
margin: 0 auto;
}
</style>
<script src="js/jquery-1.7.2.min.js"></script>
</head>
<body>
<ul id="LoutiNav">
<li class="active"><i>1F</i><span>服饰</span></li>
<li><i>2F</i><span>美妆</span></li>
<li><i>3F</i><span>手机</span></li>
<li ><i>4F</i><span>家电</span></li>
</ul>
<div id="goTop">
<span id="erweima">我是二维码</span> Top
</div>
<div id="header">头部</div>
<div id="main">
<div class="louceng" >服饰</div>
<div class="louceng" >美妆</div>
<div class="louceng" >手机</div>
<div class="louceng" >家电</div>
</div>
<script>
var oNav = $('#LoutiNav'); //导航壳
var aNav = oNav.find('li'); //导航
var aDiv = $('#main .louceng'); //楼层
var oTop = $('#goTop'); //回到顶部
$(window).scroll(function() {
//可视窗口高度
var winH = $(window).height();
//鼠标滚动的距离
var iTop = $(window).scrollTop();
if(iTop >= $("#header").height()) {
oNav.fadeIn();
oTop.fadeIn();
//鼠标滑动样式改变
aDiv.each(function() {
if(winH + iTop - $(this).offset().top > winH / 2) {
aNav.removeClass('active');
aNav.eq($(this).index()).addClass('active');
}
})
} else {
oNav.fadeOut();
oTop.fadeOut();
}
})
//点击回到当前楼层
aNav.click(function() {
var t = aDiv.eq($(this).index()).offset().top;
$('body,html').animate({
"scrollTop": t
}, 500);
$(this).addClass('active').siblings().removeClass('active');
});
//回到顶部
oTop.click(function() {
$('body,html').animate({
"scrollTop": 0
}, 500)
})
</script>
</body>
</html>看完了这篇文章，相信你对“js如何实现楼层滚动效果”有了一定的了解，如果想了解更多相关知识，欢迎关注亿速云行业资讯频道，感谢各位的阅读！
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