1、从下到上滚动
（1）jq版本
<pre data-language="plain" id="HwBC0" class="ne-codeblock" style="border: 1px solid #e8e8e8; border-radius: 2px; background: #f9f9f9; padding: 16px; font-size: 13px; color: #595959"><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>文字上下无缝轮播</title>
</head>
<style>
* {
margin: 0;
padding: 0;
}
#container{
width: 60%;
margin: 100px auto;
position: relative;
height: 200px;
overflow: hidden;
}
#list-wrapper{
position: relative;
top: 0;
}
ul {
list-style: none;
background: #f8f8f8;
text-align: center;
padding: 0 20px;
}
li{
height: 35px;
line-height: 35px;
color: #fff;
}
li:nth-child(odd){
background: #5077aa;
}
li:nth-child(even){
background: #fb6b06;
}
</style>
<body>
<div id="container">
<div id="list-wrapper">
<ul class="notice-list" id="notice-list">
<li>富强、民主、文明、和谐、自由1</li>
<li>富强、民主、文明、和谐、自由2</li>
<li>富强、民主、文明、和谐、自由3</li>
<li>富强、民主、文明、和谐、自由4</li>
<li>富强、民主、文明、和谐、自由5</li>
<li>富强、民主、文明、和谐、自由6</li>
</ul>
<ul class="notice-list" id="notice-list-2">
</ul>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script>
var ROLL_SPEED = 20
var noticeList1 = $('#notice-list');
var noticeList2 = $('#notice-list-2');
var listWrapper = $('#list-wrapper');
noticeList2.html(noticeList1.html())
listWrapper.css('top', 0)
var timer = setInterval(rollStart, ROLL_SPEED);
function rollStart() {
if (Math.abs(_subStr(listWrapper.css('top'))) >= noticeList1.height()) {
listWrapper.css('top', 0)
} else {
var top = listWrapper.css('top');
listWrapper.css('top', _subStr(top) - 1)
}
}
// 截取px前数值
function _subStr(str) {
var index = str.indexOf('px');
if (index > -1) {
return parseFloat(str.substr(0, index + 1))
}
}
</script>
</body>
</html></pre>
（2）原生js版本
<pre data-language="plain" id="EEkkx" class="ne-codeblock" style="border: 1px solid #e8e8e8; border-radius: 2px; background: #f9f9f9; padding: 16px; font-size: 13px; color: #595959"><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>文字上下无缝轮播</title>
</head>
<style>
* {
margin: 0;
padding: 0;
}
#container{
width: 60%;
margin: 100px auto;
position: relative;
height: 200px;
overflow: hidden;
}
#list-wrapper{
position: relative;
}
ul {
list-style: none;
background: #f8f8f8;
text-align: center;
padding: 0 20px;
}
li{
height: 35px;
line-height: 35px;
color: #fff;
}
li:nth-child(odd){
background: #5077aa;
}
li:nth-child(even){
background: #fb6b06;
}
</style>
<body>
<div id="container">
<div id="list-wrapper" style="top: 0">
<ul class="notice-list" id="notice-list">
<li>富强、民主、文明、和谐、自由1</li>
<li>富强、民主、文明、和谐、自由2</li>
<li>富强、民主、文明、和谐、自由3</li>
<li>富强、民主、文明、和谐、自由4</li>
<li>富强、民主、文明、和谐、自由5</li>
<li>富强、民主、文明、和谐、自由6</li>
</ul>
<ul class="notice-list" id="notice-list-2">
</ul>
</div>
</div>
<script>
var ROLL_SPEED = 100
var noticeList1 = document.getElementById('notice-list');
var noticeList2 = document.getElementById('notice-list-2');
var listWrapper = document.getElementById('list-wrapper');
noticeList2.innerHTML=noticeList1.innerHTML;
var timer = setInterval(rollStart, ROLL_SPEED);
function rollStart() {
if (Math.abs(_subStr(listWrapper.style.top)) >= noticeList1.clientHeight) {
listWrapper.style.top = '0px'
} else {
var top = listWrapper.style.top
listWrapper.style.top = _subStr(top
)-1+'px'
}
}
// 截取px前数值
function _subStr(str) {
var index = str.indexOf('px');
if (index > -1) {
return parseFloat(str.substr(0, index + 1))
}
}
</script>
</body>
</html></pre>
2、从右到左
<pre data-language="plain" id="xJ7lG" class="ne-codeblock" style="border: 1px solid #e8e8e8; border-radius: 2px; background: #f9f9f9; padding: 16px; font-size: 13px; color: #595959"><!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>向左滚动</title>
<style type="text/css">
*{
baimargin:0;
padding:0;
list-style:none;
}
#gundong {
background: #FFF;
overflow: hidden;
border: 1px dashed #CCC;
width: 500px;
font-size: 12px;
height: 40px;
}
#gundong a {
color:#333;
}
#gundongAreaMain1 {
float: left;
width: 800%;
}
#gundongAreaMain2, #gundongAreaMain3, #gundongAreaMain2 li, #gundongAreaMain3 li {
float: left;
}
</style>
</head>
<body>
<div id="gundongAreaMain">
<span>导读</span>
<div id="gundong">
<div id="gundongAreaMain1">
<ul id="gundongAreaMain2">
<li><a href="/" target="_blank"><strong>1111111111111111</strong></a></li>
<li><a href="/" target="_blank"><strong>2222222222222222</strong></a></li>
<li><a href="/" target="_blank"><strong>3333333333333333</strong></a></li>
<li><a href="/" target="_blank"><strong>4444444444444444</strong></a></li>
</ul>
<ul id="gundongAreaMain3"></ul>
</div>
</div>
</div>
<script>
var speed=30; //数字越du大速度越慢
var tab=document.getElementById("gundong");
var tab1=document.getElementById("gundongAreaMain2");
var tab2=document.getElementById("gundongAreaMain3");
tab2.innerHTML=tab1.innerHTML;
function Marquee(){
if(tab2.offsetWidth-tab.scrollLeft<=0)
tab.scrollLeft-=tab1.offsetWidth
else{
tab.scrollLeft++;
}
}
var MyMar=setInterval(Marquee,speed);
tab.onmouseover=function() {clearInterval(MyMar)};
tab.onmouseout=function() {MyMar=setInterval(Marquee,speed)};
</script>
</body>
</html></pre>
