JQ实现焦点图轮播效果（一）
效果图：
图片素材 ：
代码如下，复制即可使用：
（不过里面的JQ路径和图片路径需要自己改成自己的JQ路径和图片路径，否则是没有效果显示的哦）
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JQ实现焦点图轮播效果（一）</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>
<!-- 此处需要改为自己的JQ路径 -->
<script type="text/javascript" src="http://libs.baidu.com/jquery/1.9.1/jquery.js">
</script>
<script type="text/javascript">
$(function() {
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) {
var left = parseInt(list.css('left')) + offset;
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" style="left: -600px;">
<!-- 放最后的一张图片 -此处需要改为自己的图片路径 -->
<img src="img/5.jpg-600" alt="1" />
<img src="img/1.jpg-600" alt="1" />
<img src="img/2.jpg-600" alt="2" />
<img src="img/3.jpg-600" alt="3" />
<img src="img/4.jpg-600" alt="4" />
<img src="img/5.jpg-600" alt="5" />
<!-- 放第一张的图片 -->
<img src="img/1.jpg-600" 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>更多前端开发知识，请查阅 HTML中文网 ！！
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