发布于 2017-01-06 22:44:05 | 101 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。


右下角弹出提示框想必大家不会陌生吧,本文简单的为大家实现一个,具体代码如下,有需求的朋友可以参考下
 
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 
<% 
String path = request.getContextPath(); 
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%> 
<!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=gb2312" /> 
<title>无标题文档</title> 
<style type="text/css"> 
* {margin:0px;padding:0px;} 
html,body { height:100%;} 
body { font-size:14px; line-height:24px;} 
#tip { 
position: absolute; 
right: 0px; 
bottom: 0px; 
height: 0px; 
width: 180px; 
border: 1px solid #CCCCCC; 
background-color: #eeeeee; 
padding: 1px; 
overflow:hidden; 
display:none; 
font-size:12px; 
z-index:10; 
} 
#tip p { padding:6px;} 
#tip h1,#detail h1 { 
font-size:14px; 
height:25px; 
line-height:25px; 
background-color:#0066CC; 
color:#FFFFFF; 
padding:0px 3px 0px 3px; 
filter: Alpha(Opacity=100); 
} 
#tip h1 a,#detail h1 a { 
float:right; 
text-decoration:none; 
color:#FFFFFF; 
} 
#shadow { 
position:absolute; 
width:100%; 
height:100%; 
background-color:#000000; 
z-index:11; 
filter: Alpha(Opacity=70); 
display:none; 
overflow:hidden; 
} 
#detail { 
width:500px; 
height:200px; 
border:3px double #ccc; 
background-color:#FFFFFF; 
position:absolute; 
z-index:30; 
display:none; 
left:30%; 
top:30% 
} 
</style> 
<script type="text/javascript"> 
var handle; 
function start() 
{ 
var obj = document.getElementById("tip"); 
if (parseInt(obj.style.height)==0) 
{ obj.style.display="block"; 
handle = setInterval("changeH('up')",2); 
}else 
{ 
handle = setInterval("changeH('down')",2) 
} 
} 
function changeH(str) 
{ 
var obj = document.getElementById("tip"); 
if(str=="up") 
{ 
if (parseInt(obj.style.height)>200) 
clearInterval(handle); 
else 
obj.style.height=(parseInt(obj.style.height)+8).toString()+"px"; 
} 
if(str=="down") 
{ 
if (parseInt(obj.style.height)<8) 
{ clearInterval(handle); 
obj.style.display="none"; 
} 
else 
obj.style.height=(parseInt(obj.style.height)-8).toString()+"px"; 
} 
} 
function showwin() 
{ 
document.getElementsByTagName("html")[0].style.overflow = "hidden"; 
start(); 
document.getElementById("shadow").style.display="block"; 
document.getElementById("detail").style.display="block"; 
} 
function recover() 
{ 
document.getElementsByTagName("html")[0].style.overflow = "auto"; 
document.getElementById("shadow").style.display="none"; 
document.getElementById("detail").style.display="none"; 
} 
</script> 
</head> 
<body onload="document.getElementById('tip').style.height='0px'"> 
<div id="shadow"> </div> 
<div id="detail"> 
</div> 
<div id="tip"><h1><a href="javascript:void(0)" onclick="start()">×</a>您有新消息</h1><p><a href="javascript:void(0)" onclick="showwin()">点击这里查看详细</a></p></div> 

</body> 
</html> 
<script language="JavaScript"> 
window.attachEvent("onload", myTimer); //绑定到onload事件 
function myTimer() { 
start(); 
window.setTimeout("myTimer()",6000);//设置循环时间 
} 
</script> 


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