特效介绍
基于js+CSS3的类似帆船帆板翻转的图片轮播代码，每张图片都会从中间“裂开”，然后“碎成”帆船帆板一样，有次序的从一张张反转过去，显示为下一张或上一张，而且，是3D效果，有厚度，有质量。
上一张、下一张按钮没有进行美化，如果使用的话，适当改改css，美化下效果更好。当然，作为学习，查看如何实现的，也非常不错，因为没有引入任何库文件，非常“纯净”。
使用方法
1、在代码中加入下面的css：
#box {
position: relative;
width: 1050px;
height: 360px;
margin: 100px auto 10px;
}
#box ul li {
position: absolute;
left: 0;
top: 0;
width: 1050px;
height: 360px;
display: none;
}
#show {
position: absolute;
left: 0;
top: 0;
width: 1050px;
height: 360px;
perspective: 800px;
display: none;
}
#show div {
position: relative;
width: 525px;
height: 72px;
float: left;
transform-style: preserve-3d;
}
#show div em {
position: absolute;
left: 0;
top: 0;
display: block;
width: 525px;
height: 72px;
}
#show div .em1 {
/*前面*/
background: url("img/1.png");
transform: translateX(5px);
}
#show div .em2 {
/*后面*/
background: url("img/2.png");
transform: translateZ(-5px) rotateX(-180deg);
}
#show div span {
position: absolute;
right: 0;
bottom: 0;
background-color: #999;
}
#show div span.span1 {
width: 10px;
height: 72px;
transform-origin: right;
transform: translateZ(-5px) rotateY(-90deg);
}
#show div span.span2 {
width: 525px;
height: 10px;
transform-origin: bottom;
transform: translateZ(-5px) rotateX(-90deg);
}
#show div.div2 .span1 {
left: 0;
transform-origin: left;
transform: translateZ(5px) rotateY(90deg);
}
/*规定左前动画旋转特效*/
@keyframes move1{
0%{
transform: rotateX(0deg) rotateZ(0deg) rotateY(0deg);
animation-timing-function: ease;/*运动速度曲线*/
}
60%{
transform: rotateX(0deg) rotateZ(0deg) rotateY(-60deg);
animation-timing-function: ease-in;/*运动速度曲线*/
}
80%{
transform: rotateX(90deg) rotateZ(10deg) rotateY(-45deg);
animation-timing-function: ease-out;/*运动速度曲线*/
}
100%{
transform: rotateX(180deg) rotateZ(0deg) rotateY(0deg);
}
}
@keyframes move2{
0%{
transform: rotateX(0deg) rotateZ(0deg) rotateY(0deg);
animation-timing-function: ease;/*运动速度曲线*/
}
60%{
transform: rotateX(0deg) rotateZ(0deg) rotateY(60deg);
animation-timing-function: ease-in;/*运动速度曲线*/
}
80%{
transform: rotateX(90deg) rotateZ(-10deg) rotateY(45deg);
animation-timing-function: ease-out;/*运动速度曲线*/
}
100%{
transform: rotateX(180deg) rotateZ(0deg) rotateY(0deg);
}
}
2、html：
<div id="box">
<ul>
<li><img src="img/1.png" alt="pho"/></li>
<li><img src="img/2.png" alt="pho"/></li>
<li><img src="img/3.png" alt="pho"/></li>
<li><img src="img/4.png" alt="pho"/></li>
<li><img src="img/5.png" alt="pho"/></li>
</ul>
<div id="show"></div>
</div>
<input type="button" id="prev" value="上一张"/>
<input type="button" id="next" value="下一张"/>
3、js代码：
var oShow = document.getElementById("show");
var oBox = document.getElementById('box');
var prev = document.getElementById("prev");
var next = document.getElementById("next");
var oLi = oBox.getElementsByTagName("ul")[0].getElementsByTagName("li");
var oImg = oBox.getElementsByTagName("ul")[0].getElementsByTagName("img");
oShow.iNow = 0;
oShow.urls = []; /*当前背景 给oshow对象添加一个自定义属性保存当前显示的图片*/
oShow.off = false;
/*保存图片路径*/
for (var i = 0; i < 5; i++) {
var oDiv1 = document.createElement("div");
var oDiv2 = document.createElement("div");
oDiv2.className = "div2";
oDiv1.innerHTML = "<em class='em1' style='background-position: 0-" + i * 72 + "px'></em><span class='span1'></span>" +
"<em class='em2' style='background-position: 0-" + i * 72 + "px'></em><span class='span2'></span>";
oDiv2.innerHTML = "<em class='em1' style='background-position: -525px+" + (5 - i) * 72 + "px'></em><span class='span1'></span>" +
"<em class='em2' style='background-position: -525px+" + (5 - i) * 72 + "px'></em><span class='span2'></span>";
oShow.appendChild(oDiv1);
oShow.appendChild(oDiv2);
}
oLi[0].style.display = "block";
/***********/
//获取图片
for (var i = 0; i < oImg.length; i++) {
oShow.urls.push(oImg[i].getAttribute("src"));
}
prev.onclick = function () {
if(oShow.off){
return; //
}
oShow.off = true;
var iNext = oShow.iNow - 1;
if (iNext < 0) {
iNext = oShow.urls.length - 1;
}
tab(iNext);//切换图片
};
next.onclick = function () {
if(oShow.off){
return; //
}
oShow.off = true;
var iNext = oShow.iNow + 1;
if (iNext >= oShow.urls.length) {
iNext = 0;
}
tab(iNext);//切换图片
};
function tab(iNext) {
var oEm1 = oShow.getElementsByClassName("em1");
var oEm2 = oShow.getElementsByClassName("em2");
var oDiv = oShow.getElementsByTagName("div");
for (var i = 0; i < oEm1.length; i++) {
//当前的这一张
oEm1[i].style.backgroundImage = "url(" + oShow.urls[oShow.iNow] + ")";
//后面的哪一张
oEm2[i].style.backgroundImage = "url(" + oShow.urls[iNext] + ")";
}
oShow.style.display = "block";
oLi[oShow.iNow].style.display = "none";
//给具体的十个div绑定定时器 实现旋转效果
for (var i = 0; i < oDiv.length; i+=2) {
var time = (i+1)*50;
oDiv[i].style.transform = "rotateX(0deg)";//左边
oDiv[i + 1].style.transform = "rotateX(0deg)";//右边
//具体每个div绑定定时器
setTimer(oDiv[i], time,"move1");
setTimer(oDiv[i + 1], time,"move2")
}
//动画执行完成之后
setTimeout(function(){
oShow.iNow = iNext;
oLi[oShow.iNow].style.display = "block";///inext.inow
oShow.style.display = "none";
oShow.off = false;
},(oDiv.length*50+1500))
}
function setTimer(obj,time,name){
obj.timer = setTimeout(function(){
//开启定时器之前先清除定时器
clearTimeout(obj.timer);
obj.style.animation = name + " 1.5s";
obj.style.transform = "rotateX(180deg)";
obj.timer = setTimeout(function(){
obj.style.animation = "";
clearTimeout(obj.timer);
obj.timer = null;
},1500);
},time)
}