如何通过JS实现3D拖拽翻页效果代码？
本文实例讲述了JS实现的3D拖拽翻页效果。分享给大家供大家参考，具体如下：
以前看到一个很火的帖子，拖拽实现的翻页效果，非常的有创意，自己也很喜欢，于是乎就萌发了用自己的方法模仿的想法。感谢原创作者的创意，结果一样，但过程不一样哦。奉上代码，供大家参考。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/js-3d-drag-page-style-codes/
具体代码如下：
<!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=gb2312" />
<title>拖拽翻页</title>
<style type="text/css">
*{margin:0;padding:0;}
body{font-size:12px; overflow:hidden;}
img{border:0;}
li{list-style:none;}
#drag{
width:682px;
color:#fff;
position:relative;
margin:50px auto 0 auto;
font-family:"Microsoft YaHei", "宋体";
}
#drag ul{
}
#drag ul li{
text-align:right;
height:30px;
line-height:30px;
overflow:hidden;
vertical-align:middle;
font-size:14px;
border-bottom:1px dashed #fff;
}
#drag ul li span{
float:right;
}
#drag ul li a{
float:left;
color:#fff;
text-decoration:none;
}
#drag div{
width:600px;
height:350px;
padding:40px;
background:#77521d;
cursor:e-resize;
border:1px solid #999;
position:absolute;
left:0;
top:0;
}
#drag div p{
width:100%;
padding-bottom:20px;
text-align:center;
position:absolute;
bottom:0;
left:0;
}
</style>
<script type="text/javascript">
window.onload=function()
{
var oDrag=document.getElementById('drag');
var aDiv=oDrag.getElementsByTagName('div');
var aLink=oDrag.getElementsByTagName('a');
var i=0;
for(i=0;i<aDiv.length;i++)
{
aDiv[i].style.zIndex=(i+1);
aDiv[i].innerHTML+='<p>第 '+(i+1)+'/'+aDiv.length+' 页 提示：左右拖拽翻页</p>';
aDiv[i].onmousedown=drag;
}
for(i=0;i<aLink.length;i++)
{
aLink[i].onmousedown=function(ev)
{
var oEvent=ev||event;
oEvent.stopPropagation?oEvent.stopPropagation():oEvent.cancelBubble=true;
};
}
};
function drag(ev)
{
var obj=this;
var mouseStart=[];
var objStart=[];
var oEvent=ev||event;
mouseStart.x=oEvent.clientX;
objStart.x=this.offsetLeft;
document.onmousemove=function(ev)
{
var oEvent=ev||event;
var l=oEvent.clientX-mouseStart.x+objStart.x;
var t=oEvent.clientY-mouseStart.y+objStart.y;
obj.style.left=l+'px';
return false;
};
document.onmouseup=function()
{
document.onmousemove=document.onmouseup=null;
startMove(obj);
};
return false;
}
function startMove(obj)
{
var oDrag=document.getElementById('drag');
var aDiv=oDrag.getElementsByTagName('div');
var iSpeed=0;
obj.timer=setInterval(function(){
obj.onmousedown=null;
obj.offsetLeft>=0?iSpeed+=10:iSpeed-=10;
var l=obj.offsetLeft+iSpeed;
if(l>obj.offsetWidth)
{
l=obj.offsetWidth;
moveDirection(iSpeed);
}
else if(l<-obj.offsetWidth)
{
l=-obj.offsetWidth;
moveDirection(iSpeed);
}
obj.style.left=l+'px';
},30);
function moveDirection(iSpeed)
{
for(i=0;i<aDiv.length;i++)
{
aDiv[i].style.zIndex=parseInt(aDiv[i].style.zIndex)+1;
if(aDiv[i]==obj)
{
obj.style.zIndex=parseInt(obj.style.zIndex)-aDiv.length;
}
}
clearInterval(obj.timer);
t=setInterval(function(){
obj.onmousedown=null;
var l=obj.offsetLeft-iSpeed;
if((iSpeed<0 && l>0) || (iSpeed>0 && l<0))
{
l=0;
clearInterval(t);
obj.onmousedown=drag;
}
obj.style.left=l+'px';
},30);
}
}
</script>
</head>
<body>
<div id="drag">
<div>
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希望本文所述对大家JavaScript程序设计有所帮助。
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