WEB前端：05_scroll滚动(图片/文字滚动)
2020-12-13 02:29
阅读：407
YPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
标签：style blog class code java ext
scroll滚动(图片/文字滚动)
网站常用效果之一，以下为简化版，用于学习javascript基础知识。
效果图：
scroll滚动(图片/文字滚动)- 纯JS简化版
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>
*{margin: 0; padding: 0;}#probox{ position: relative; border: 1px solid #ccc; width:1000px;overflow:hidden;height:120px; margin: 10px auto;}#prolist{ position: relative; width:2000px; height: 120px; list-style: none; margin: 0; padding: 0;}#prolist li {float: left; width: 250px; height: 120px; text-align: center;}#left,#right{ background: #333; color: #fff; padding: 5px; cursor:pointer;}>
window.onload = function() {
var
probox = document.getElementById(‘probox‘);
var
prolist = document.getElementById(‘prolist‘);
var
prolistli = prolist.getElementsByTagName(‘li‘);
var
btnleft = document.getElementById(‘left‘);
var
btnright = document.getElementById(‘right‘);
var
cut = prolistli[1].offsetLeft - prolistli[0].offsetLeft;
var
len = prolist.offsetLeft;
var
timer = null;
function
autoplay() {
if(timer) {
clearInterval(timer);
}
timer = setInterval(function() {
if(prolist.offsetLeft == -cut) {
clearInterval(timer);
prolist.appendChild(prolistli[0]);
prolist.style.left = "0px";
} else
{
prolist.style.left = prolist.offsetLeft - 10 + "px";
}
}, 30)
}
probox.onmouseover = function() {
clearInterval(o);
}
probox.onmouseout = function() {
o = setInterval(autoplay, 3000);
}
btnleft.onclick = function() {
clearInterval(o);
if(timer) {
clearInterval(timer);
}
timer = setInterval(function() {
if(prolist.offsetLeft == 0) {
clearInterval(timer);
prolist.insertBefore(prolistli[prolistli.length - 1], prolist.firstChild);
prolist.style.left = -cut + "px";
} else
{
prolist.style.left = prolist.offsetLeft + 10 + "px";
}
}, 30);
o = setInterval(autoplay, 3000);
}
btnright.onclick = function() {
clearInterval(o);
if(timer) {
clearInterval(timer);
}
timer = setInterval(function() {
if(prolist.offsetLeft == -cut) {
clearInterval(timer);
prolist.appendChild(prolistli[0]);
prolist.style.left = "0px";
} else
{
prolist.style.left = prolist.offsetLeft - 10 + "px";
}
}, 30);
o = setInterval(autoplay, 3000);
}
o = setInterval(autoplay, 3000);
} |
WEB前端：05_scroll滚动(图片/文字滚动),搜素材,soscw.com
WEB前端：05_scroll滚动(图片/文字滚动)
标签：style blog class code java ext
原文地址：http://www.cnblogs.com/haicheng/p/3718565.html
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