发布于 2017-02-13 12:56:02 | 142 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+CSS实现可拖拽的漂亮圆角特效弹出层的方法。分享给大家供大家参考。具体如下：
<!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>JS+CSS实现的可拖拽的漂亮圆角效果的弹出层</title>
<style>
body{
margin:0px;
padding:0px;
font-size:14px;
}
#t {
position:absolute;
float:left;
left:0px;
top:0px;
}
#a {
float:left;
}
.al {
opacity: 0.80;
filter : progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=80,finishOpacity=100);
}
.al2{
opacity: 0.00;
filter : progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0,finishOpacity=100);
}
U {
DISPLAY: block;
OVERFLOW: hidden;
HEIGHT: 1px
}
U.f1 {
background-color:#5cc;
BACKGROUND: #5cc;
MARGIN: 0px 3px
}
U.f2 {
background-color:#5cc;
BORDER-RIGHT: #5cc 2px solid;
MARGIN: 0px 1px;
BORDER-LEFT: #5cc 2px solid
}
U.f3 {
background-color:#5cc;
BORDER-RIGHT: #5cc 1px solid;
MARGIN: 0px 1px;
BORDER-LEFT: #5cc 1px solid
}
.d_top{
clear:both;
overflow:hidden;
background-color:#5cc;
height:29px;
vertical-align:bottom;
}
.d_top a{
float:right;
margin-top:5px;
margin-right:13px;
padding-top:3px;
width:18px;
color:red;
background-color:#789;
text-decoration:none;
font-weight:bold;
text-align:center;
vertical-align:middle;
}
.d_top span{
float:left;
font-size:13px;
margin-left:15px;
margin-top:8px;
}
.d_body {
BORDER-RIGHT: #5cc 3px solid;
BORDER-LEFT: #5cc 3px solid;
padding:10px;
height:200px;
background-color:#fff;
}
.d_foot{
clear:both;
overflow:hidden;
background-color:#5cc;
height:2px;
}
</style>
<script type="text/javascript">
function $(id){return document.getElementById(id);}
function show(id){
var t = $(id);
t.style.width=document.body.clientWidth;
t.style.height=document.body.clientHeight;
window.onresize=function(){
t.style.width=document.body.clientWidth;
t.style.height=document.body.clientHeight;
}
$(id).style.display="";
}
function cl(id){
$(id).style.display="none";
}
function moveEvent(e,id){
var isIE = (document.all)?true:false;
drag = true;
xx=isIE?event.x:e.pageX;
yy=isIE?event.y:e.pageY;
L = document.getElementById(id).offsetLeft;
T = document.getElementById(id).offsetTop;
document.onmousemove = function(e) {
if (drag) {
x=isIE?event.x:e.pageX; if(x<0)x=0;
y=isIE?event.y:e.pageY; if(y<0)y=0;
document.getElementById(id).style.left = L-xx+x;
document.getElementById(id).style.top = T-yy+y;
}
}
document.onmouseup=function(){
drag = false;
}
}
window.onscroll=function(){
$("back_div").style.width=document.body.scrollWidth;
$("back_div").style.height=document.body.scrollHeight;
}
</script>
</head>
<body>
<div id="a" style="position:absolute; left:300px; top:200px;">
<a href="javascript:" onClick="show('t')">点这里弹出圆角效果的div</a><a href='http://www.phperz.com/' target='_blank'><u>对话框</u></a>！ </div>
<div id="t" style="display:none;">
<div style="width:100%;height:100%; z-index:-1; position:absolute; float:left; background-color:#555;overflow:hidden;" class="al" id="back_div">
<iframe style="position:absolute; left:0px; top:0px; left:0px; bottom:0px; float:left; z-index:-1; margin:0px; padding:0px;" frameborder="0" scrolling="no" width="100%" height="2000px;" class="al2" id="ifr"></iframe>
</div>
<DIV style="WIDTH: 500px; position:absolute;float:left;top:25%; left:30%; z-index:999; clear:both; overflow:hidden;" id="t_div">
<iframe style="position:absolute; left:0px; top:0px; left:0px; bottom:0px; float:left; z-index:-1; margin:0px; padding:0px;" frameborder="0" scrolling="no" width="100%" height="2000px;" class="al2" id="ifr"></iframe>
<U class="f1"></U><U class="f2"></U><U class="f3"></U>
<div class="d_top" onMouseDown="moveEvent(event,'t_div')">
<span>欢迎光临</span>
<a href="javascript:" onClick="cl('t')">×</a>
</div>
<DIV class="d_body" >欢迎光临：phperz
</DIV>
<div class="d_foot"></div>
<U class="f3"></U><U class="f2"></U><U class="f1"></U>
</DIV>
</div>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。