resharpe
2016-07-13 12:00:15浏览 6538
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图片轮播</title>
<style>
body,div,span,img,a{margin:0;padding: 0;text-decoration: none;}
#container{position: relative;width: 400px;height: 450px;overflow: hidden;margin: 20px auto;border:3px solid red;}
#list{width: 2800px;height: 450px;position: absolute;z-index: 1;}
#list img{width: 400px;height: 450px;float: left;}
#buttons{position: absolute;float: left;width: 100px;height: 10px;bottom:50px;left:175px;z-index: 2;}
#buttons span{float:left;height: 10px;width: 10px;margin-right: 5px;cursor: pointer;border:1px solid #000;border-radius: 50%;background: #ccc;z-index: 2;}
#buttons .on{background: red;}
.arrow{cursor: pointer; display: none;position:absolute;height: 30px;width: 30px;top:175px;font-size: 25px;line-height: 25px;text-align:center;color: #ccc;z-index: 2;background-color: RGBA(0,0,0,.3);}
.arrow:hover{background-color: RGBA(0,0,0,.6);}
#container:hover .arrow{display: block;}
#prev{left: 25px;}
#next{right: 25px;}
</style>
<script>
window.onload=function () {//页面加载调用
var container=document.getElementById('container');
var list=document.getElementById('list');
var buttons=document.getElementById('buttons').getElementsByTagName('span');
var prev=document.getElementById('prev');
var next=document.getElementById('next');
var index=1;//用于索引当前按钮
var len=5;//图片数量
var animated = false;//判断切换是否进行
var interval = 3000;//自动播放计时器3s
var timer;//定时器
function animate (offset) {//动画切换
animated=true;//切换进行中
var time=300;//位移总时间
var inteval=10;//位移时间间隔
var times=time/inteval;//位移次数
var speed = offset/times;//位移速度
var left= parseInt(list.style.left)+offset;//目标值
var go=function () {
//这两种情况表示还在切换中
if ( (speed > 0 && parseInt(list.style.left) < left) (speed < 0 && parseInt(list.style.left) > left)) {
list.style.left = parseInt(list.style.left) + speed + 'px';
setTimeout(go, inteval);//继续执行切换go()函数
}
else {
list.style.left = left+ 'px';
if(left<-400*len){
list.style.left="-400px";
}
if(left>-400){
list.style.left=-400*len+"px";
}
animated = false;//切换完成
}
}
go();
}
//用于为按钮添加样式
function showButton() {
//先找出原来有.on类的按钮，并移除其类
for (var i = 0; i < buttons.length ; i++) {
if( buttons[i].className == 'on'){
buttons[i].className = '';
break;
}
}
//为当前按钮添加类，索引下标从0开始，故需减1
buttons[index - 1].className = 'on';
}
//自动播放
function play() {
timer = setTimeout(function () {
next.onclick();
play();
}, interval);
}
//清除定时器
function stop() {
clearTimeout(timer);
}
//右点击
next.onclick = function () {
if (animated) {//如果切换还在进行，则直接结束，直到切换完成
return;
}
if(index==5){
index=1;
}
else{
index+=1;
}
animate(-400);
showButton();
}
//左点击
prev.onclick = function () {
if (animated) {//如果切换还在进行，则直接结束，直到切换完成
return;
}
if(index==1){
index=5;
}
else{
index-=1;
}
animate(400);
showButton();
}
//通过循环为按钮添加点击事件
for (var i=0;i<buttons.length;i++) {
buttons[i].onclick=function() {
if (animated) {//如果切换还在进行，则直接结束，直到切换完成
return;
}
//当继续点击按钮时不切换
if(this.className=='on'){
return;
}
//通过获取按钮的标签自定义属性index，得到索引值，再计算差值
var myIndex=parseInt(this.getAttribute('index'));
//真正的偏移量
var offset=-400*(myIndex-index);
animate(offset);
//将点击按钮的index属性置为当前
index=myIndex;
showButton();
}
}
//父容器的移入移出事件
container.onmouseover = stop;
container.onmouseout = play;
play();//自动播放
}
</script>
</head>
<body>
<div id="container">
<div id='list' style='left: -400px'>
<img src="img/5.jpg" alt="">
<img src="img/1.jpg" alt="">
<img src="img/2.jpg" alt="">
<img src="img/3.jpg" alt="">
<img src="img/4.jpg" alt="">
<img src="img/5.jpg" alt="">
<img src="img/1.jpg" alt="">
</div>
<div id='buttons'>
<span index='1' class="on"></span>
<span index='2'></span>
<span index='3'></span>
<span index='4'></span>
<span index='5'></span>
</div>
<a href="javascript:;" id='prev' class="arrow"><</a>
<a href="javascript:;" id='next' class="arrow">></a>
</div>
</body>
</html>
----------
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>query焦点轮播图</title>
<style type="text/css">
*{ margin: 0; padding: 0; text-decoration: none;}
body { padding: 20px;}
#container { width: 600px; height: 400px; border: 3px solid #333; overflow: hidden; position: relative;}
#list { width: 4200px; height: 400px; position: absolute; z-index: 1;}
#list img { float: left;}
#buttons { position: absolute; height: 10px; width: 100px; z-index: 2; bottom: 20px; left: 250px;}
#buttons span { cursor: pointer; float: left; border: 1px solid #fff; width: 10px; height: 10px; border-radius: 50%; background: #333; margin-right: 5px;}
#buttons .on { background: orangered;}
.arrow { cursor: pointer; display: none; line-height: 39px; text-align: center; font-size: 36px; font-weight: bold; width: 40px; height: 40px; position: absolute; z-index: 2; top: 180px; background-color: RGBA(0,0,0,.3); color: #fff;}
.arrow:hover { background-color: RGBA(0,0,0,.7);}
#container:hover .arrow { display: block;}
#prev { left: 20px;}
#next { right: 20px;}
</style>
<script type="text/javascript" src="js/jquery-3.0.0.min.js"></script>
<script type="text/javascript">
$(function () {//页面加载时调用
var container = $('#container');
var list = $('#list');
var buttons = $('#buttons span');
var prev = $('#prev');
var next = $('#next');
var index = 1;
var len = 5;
var interval = 3000;
var timer;
function animate (offset) {//动画效果
var left = parseInt(list.css('left')) + offset;//目标值
if (offset>0) {
offset = '+=' + offset;
}
else {
offset = '-=' + Math.abs(offset);
}
list.animate({'left': offset}, 300, function () {
if(left > -200){
list.css('left', -600 * len);
}
if(left < (-600 * len)) {
list.css('left', -600);
}
});
}
function showButton() {
buttons.eq(index-1).addClass('on').siblings().removeClass('on');
}
function play() {
timer = setTimeout(function () {
next.trigger('click');
play();
}, interval);
}
function stop() {
clearTimeout(timer);
}
next.bind('click', function () {
if (list.is(':animated')) {
return;
}
if (index == 5) {
index = 1;
}
else {
index += 1;
}
animate(-600);
showButton();
});
prev.bind('click', function () {
if (list.is(':animated')) {
return;
}
if (index == 1) {
index = 5;
}
else {
index -= 1;
}
animate(600);
showButton();
});
buttons.each(function () {
$(this).bind('click', function () {
if (list.is(':animated') $(this).attr('class')=='on') {
return;
}
var myIndex = parseInt($(this).attr('index'));
var offset = -600 * (myIndex - index);
animate(offset);
index = myIndex;
showButton();
})
});
container.hover(stop, play);
play();
});
</script>
</head>
<body>
<div id="container">
<div id="list" >
<img src="img/5.jpg" alt="1"/>
<img src="img/1.jpg" alt="1"/>
<img src="img/2.jpg" alt="2"/>
<img src="img/3.jpg" alt="3"/>
<img src="img/4.jpg" alt="4"/>
<img src="img/5.jpg" alt="5"/>
<img src="img/1.jpg" alt="5"/>
</div>
<div id="buttons">
<span index="1" class="on"></span>
<span index="2"></span>
<span index="3"></span>
<span index="4"></span>
<span index="5"></span>
</div>
<a href="javascript:;" id="prev" class="arrow"><</a>
<a href="javascript:;" id="next" class="arrow">></a>
</div>
</body>
</html>
热门评论
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花花_YOU2016-08-15 0
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爱读书的Iceberg2016-07-18 0
查看全部评论能把源代码分享一下就好了。学习了好多，谢谢。
5张图片，加载7张图？