一、需求说明
效果如图：
二、代码实现
项目结构如图：
example.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>LIGHTBOX EXAMPLE</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.3.js" ></script>
<script type="text/javascript" src="http://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<script type="text/javascript" src="js/jquery-mousewheel.js" ></script>
<script type="text/javascript" src="js/mylightbox.js" ></script>
<script type="text/javascript">
$(function(){
// 写法一：
/*LightBox.init({
imgObj : $(".imgPreview"),
config : {
boxHeight : 300,
boxWidth : 500
}
});*/
// 写法二：
$(".imgPreview").lightbox({
boxHeight : 300,
boxWidth : 500
});
});
</script><link rel="stylesheet" href="css/mylightbox.css" rel="external nofollow" />
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css" />
</head>
<body>
<img id="lightImgaa" class="imgPreview" src="images/1.png"/>
<img id="lightImgbb" class="imgPreview" src="images/2.png"/>
</body>
</html>
mylightbox.css
.white_content {
display: none;
position: absolute;
width: 800px;
height: 600px;
/*padding: 6px 16px;*/
padding: 0;
border: 3px solid rgb(252,252,252, 0.2);
background-color: #f5f6f7;
z-index:1002;
overflow: hidden;
}
.white_content .con {
width: 800px;
height: 600px;
}
.black_overlay {
display: none;
position: absolute;
top: 0%;
left: 0%;
width: 100%;
height: 100%;
background-color:#777777;
z-index:1001;
-moz-opacity: 0.8;
opacity:.80;
filter: alpha(opacity=80);
}
.white_content .close {
position: relative;
float:right;
clear:both;
width:100%;
text-align:right;
margin:0;
z-index: 10;
height: 20px;
line-height: 20px;
background: white;
}
.white_content .close a {
color:#333;
text-decoration:none;
font-size:14px;
font-weight:700
}jquery-mousewheel.js（兼容鼠标滚轮事件的一个插件）
mylightbox.js
(function($){
