发布于 2017-02-11 04:27:52 | 99 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
本文实例讲述了JS实现图片高亮展示效果的方法。分享给大家供大家参考，具体如下：
昨天朋友让我帮着做个图片高亮展示的效果，虽然不难，不过满有创意的：
<!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>name</title>
<style type="text/css">
*{}{margin:0; padding:0;}
a img{}{border:none;}
#imagesBox {}{ width:165px; height:110px; position:relative; left:100px; top:100px; z-index:1; border:1px solid black; background-color:white;}
#trans{}{ width:165px; height:110px; position:absolute; left:0; top:0; z-index:2; display:none; opacity:0.5; filter:alpha(opacity=50); background-color:black;}
#imagesBox li {}{ width:55px; height:55px; float:left; overflow:hidden;}
#imagesBox li a,#imagesBox li img {}{ width:55px; height:55px; display:block; cursor:pointer;}
#imagesBox li img{}{ position:relative;}
#imagesBox strong{}{position:absolute;left:0; top:50%; margin-top:-7px; z-index:999; display:block; color:white; width:100%; height:15px; text-align:center; z-index:999;}
</style>
<script type="text/javascript">
function gallery(obj){
var tit=obj.getAttribute("alt");
document.getElementById("show_tit").firstChild.nodeValue=tit;
document.getElementById("trans").style.display='block';
obj.style.zIndex="3";
}
function clearBg(obj){
document.getElementById("show_tit").firstChild.nodeValue="";
document.getElementById("trans").style.display='none';
obj.style.zIndex="1";
}
</script>
</head>
<body>
<div id="imagesBox">
<ul>
<li><a href="#" title="名称1"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称1"/><span></span></a></li>
<li><a href="#" title="名称2"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称2"/><span></span></a></li>
<li><a href="#" title="名称3"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称3"/><span></span></a></li>
<li><a href="#" title="名称4"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称4"/><span></span></a></li>
<li><a href="#" title="名称5"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称5"/><span></span></a></li>
<li><a href="#" title="名称6"><img onmouseover="gallery(this);" onmouseout="clearBg(this)" src="/images/artist//12053006018793_3.jpg" height="55" width="55" alt="名称6"/><span></span></a></li>
</ul>
<div id="trans"> </div>
<strong id="show_tit"> </strong>
</div>
</body>
</html>
刚开始因为没有完全明白设计意图，阴差阳错的做了个这样的效果：
<!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>name</title>
<style type="text/css">
*{margin:0; padding:0;}
a img{border:none;}
#imagesBox { width:165px; height:100px; position:relative; left:100px; top:100px;}
#imagesBox li { width:55px; height:55px; float:left; overflow:hidden; position:relative;}
#imagesBox li img { width:55px; height:55px; position:relative; z-index:2; }
#imagesBox li span { line-height:100px; background:#000; position:absolute; top:0; left:0; z-index:3; opacity:0.5; filter:alpha(opacity=50);
display:block; width:55px; height:55px;}
#imagesBox li a:hover span{display:none;}
#imagesBox strong{position:absolute;left:0; top:50%; margin-top:-7px; z-index:999; display:block; color:white; width:100%; height:15px; text-
align:center;}
</style>
<script type="text/javascript">
function gallery(obj){
var tit=obj.getAttribute("title");
document.getElementById("show_tit").firstChild.nodeValue=tit;
document.getElementById("imagesBox").onmouseout=function(){document.getElementById("show_tit").firstChild.nodeValue="这里显示
名字"};
}
</script>
</head>
<body>
<div id="imagesBox">
<ul>
<li><a href="#" onmouseover="gallery(this);" title="名称1"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称1"/><span></span></a></li>
<li><a href="#" onmouseover="gallery(this);" title="名称2"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称2"/><span></span></a></li>
<li><a href="#" onmouseover="gallery(this);" title="名称3"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称3"/><span></span></a></li>
<li><a href="#" onmouseover="gallery(this);" title="名称4"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称4"/><span></span></a></li>
<li><a href="#" onmouseover="gallery(this);" title="名称5"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称5"/><span></span></a></li>
<li><a href="#" onmouseover="gallery(this);" title="名称6"><img src="/images/artist//12053006018793_3.jpg" height="55"
width="55" alt="名称6"/><span></span></a></li>
</ul>
<strong id="show_tit">这里显示名字</strong>
</div>
</body>
</html>希望本文所述对大家JavaScript程序设计有所帮助。