jQuery UI 实现图片循环显示，常用于网站首页banner广告切换
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http://www.runoob.com/try/try.php?filename=jqueryui-example-position-cycler
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 定位（Position） - 图像循环</title>
<link rel="stylesheet" href="//apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css">
<script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="//apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="jqueryui/style.css">
<style>
body {
margin: 0;
}
#container {
overflow: hidden;
position: relative;
height: 400px;
}
img {
position: absolute;
}
</style>
<script>
$(function() {
// 重构部件，去除这些插件方法
$.fn.left = function( using ) {
return this.position({
my: "right middle",
at: "left+25 middle",
of: "#container",
collision: "none",
using: using
});
};
$.fn.right = function( using ) {
return this.position({
my: "left middle",
at: "right-25 middle",
of: "#container",
collision: "none",
using: using
});
};
$.fn.center = function( using ) {
return this.position({
my: "center middle",
at: "center middle",
of: "#container",
using: using
});
};
$( "img:eq(0)" ).left();
$( "img:eq(1)" ).center();
$( "img:eq(2)" ).right();
function animate( to ) {
$( this ).stop( true, false ).animate( to );
}
function next( event ) {
event.preventDefault();
$( "img:eq(2)" ).center( animate );
$( "img:eq(1)" ).left( animate );
$( "img:eq(0)" ).right().appendTo( "#container" );
}
function previous( event ) {
event.preventDefault();
$( "img:eq(0)" ).center( animate );
$( "img:eq(1)" ).right( animate );
$( "img:eq(2)" ).left().prependTo( "#container" );
}
$( "#previous" ).click( previous );
$( "#next" ).click( next );
$( "img" ).click(function( event ) {
$( "img" ).index( this ) === 0 ? previous( event ) : next( event );
});
$( window ).resize(function() {
$( "img:eq(0)" ).left( animate );
$( "img:eq(1)" ).center( animate );
$( "img:eq(2)" ).right( animate );
});
});
</script>
</head>
<body>
<div id="container">
<img src="/wp-content/uploads/2014/03/earth.jpg" width="458" height="308" alt="earth">
<img src="/wp-content/uploads/2014/03/flight.jpg" width="512" height="307" alt="flight">
<img src="/wp-content/uploads/2014/03/rocket.jpg" width="300" height="353" alt="rocket">
<a id="previous" href="#">上一个</a>
<a id="next" href="#">下一个</a>
</div>
</body>
</html>
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