发布于 2017-02-17 10:23:46 | 130 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实现响应鼠标点击动画渐变弹出层效果。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>动画弹出层</title>
<style>
.list{
position:relative;;
background:#eee;
border:1px #ccc solid;
margin:10px;
height:30px;
width:100px;
cursor :pointer ;
}
.listShow{
position:relative;
background:#eff;
border:1px #ddd solid;
margin:10px;
height:30px;
width:100px;
cursor :pointer ;
}
.comment{
position:absolute;
left:0;
display:none;
position:absolute;
border:1px #ccc solid;
background:#fee;
width:200px;
height:200px;
overflow:hidden;
z-index:100;
}
</style>
</head>
<body>
<div class="" id="show">
0
</div>
<div class="list" id="list1">1
<div class="comment" id="comment1">phperz<br/>
</div>
<div class="list" id="list2">2
<div class="comment" id="comment2">新浪搜狐</div>
</div>
<div class="list" id="list3">3
<div class="comment" id="comment3">网页特效</div>
</div>
</body>
</html>
<script>
var zindex=0;
function $id(id){
return document.getElementById(id);
}
var Bind = function(object,fun){
var args = Array.prototype.slice.call(arguments).slice(2);
return function(){
return fun.apply(object,args);
}
}
function addEventHandler(oTarget, sEventType, fnHandler){
if(oTarget.addEventListener){oTarget.addEventListener(sEventType, fnHandler, false);}
else if(oTarget.attachEvent){oTarget.attachEvent('on' + sEventType, fnHandler);}
else{oTarget['on' + sEventType] = fnHandler;}
}
var Shower=function(){
this.list=null;
this.comment=null;
this.moveLeft=80;
this.moveTop=20;
this.height=150;
this.width=250;
this.time=800;
this.init=function(lisObj,comObj){
this.list=lisObj;
this.comment=comObj;
var _this=this;
this._fnMove=Bind(this,this.move);
(function(){
var obj=_this;
addEventHandler(obj.list,"click",obj._fnMove);
})();
};
this.move=function(){
var _this=this;
var w=0;
var h=0;
var height=0; //弹出div的高
var width=0; //弹出div的宽
var t=0;
var startTime = new Date().getTime();//开始执行的时间
if(!_this.comment.style.display||_this.comment.style.display=="none"){
_this.comment.style.display="block";
_this.comment.style.height=0+"px";
_this.comment.style.width=0+"px";
_this.list.style.zIndex=++zindex;
_this.list.className="listShow";
var comment=_this.comment.innerHTML;
_this.comment.innerHTML=""; //去掉显示内容
var timer=setInterval(function(){
var newTime = new Date().getTime();
var timestamp = newTime - startTime;
_this.comment.style.left=Math.ceil(w)+"px";
_this.comment.style.top=Math.ceil(h)+"px";
_this.comment.style.height=height+"px";
_this.comment.style.width=width+"px";
t++;
var change=(Math.pow((timestamp/_this.time-1), 3) +1); //根据运行时间得到基础变化量
w=_this.moveLeft*change;
h=_this.moveTop*change;
height=_this.height*change;
width=_this.width*change;
$id("show").innerHTML=w;
if(w>_this.moveLeft){
clearInterval(timer);
_this.comment.style.left=_this.moveLeft+"px";
_this.comment.style.top=_this.moveTop+"px";
_this.comment.style.height=_this.height+"px";
_this.comment.style.width=_this.width+"px";
_this.comment.innerHTML=comment; //回复显示内容
}
},1,_this.comment);
}else{
_this.hidden();
}
}
this.hidden=function(){
var _this=this;
var flag=1;
var hiddenTimer=setInterval(function(){
if(flag==1){
_this.comment.style.height=parseInt(_this.comment.style.height)-10+"px";
}else{ _this.comment.style.width=parseInt(_this.comment.style.width)-15+"px";
_this.comment.style.left=parseInt(_this.comment.style.left)+5+"px";
}
if(flag==1 && parseInt(_this.comment.style.height)<10){
flag=-flag;
}
if(parseInt(_this.comment.style.width)<20){
clearInterval(hiddenTimer);
_this.comment.style.left="0px";
_this.comment.style.top="0px";
_this.comment.style.height="0px";
_this.comment.style.width="0px";
_this.comment.style.display="none";
if(_this.list.style.zIndex==zindex){
zindex--;
};
_this.list.style.zIndex=0;
_this.list.className="list";
}
},1)
}
}
window.onload=function(){
//建立各个菜单对象
var shower1=new Shower();
shower1.init($id("list1"),$id("comment1"));
var shower2=new Shower();
shower2.init($id("list2"),$id("comment2"));
var shower3=new Shower();
shower3.init($id("list3"),$id("comment3"));
}
</script>
希望本文所述对大家JavaScript程序设计有所帮助。