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JS+CSS实现的拖动分页效果实例_javascript技巧

WBOYOriginal: 2016-05-16 15:59:521610Durchsuche

本文实例讲述了JS+CSS实现拖动分页效果的方法。分享给大家供大家参考。具体实现方法如下：

<html>
<head>
<title>拖动分页</title>
<meta http-equiv=Content-Type content="text/html; charset=utf-8">
<style>
body{
border:0px;
margin:0px;
overflow:hidden;
background-color:transparent;
}
.page{
position:absolute;
width:700px;
border:1px solid #999;
background-color:#000;
left:425px;
margin-left:-350px;
cursor:default;
z-index:0;
}
ul{
height:320px;
list-style:none;
margin:40px 50px 0px;
padding:0px;
}
li{
width:100%;
height:30px;
line-height:30px;
font-size:14px;
text-align:left;
border-bottom:1px dashed #999;
}
a{
text-decoration:none;
color:#999;
}
a:hover{
font-weight:bold;
}
li span{
float:right;
color:#999;
}
.tip{
display:block;
width:100%;
font-size:12px;
color:#999;
text-align:center;
margin:10px 0px 20px;
}
</style>
</head>
<body onselectstart="return false;">
<script>
function id(obj){
return document.getElementById(obj);
}
var page;
var lm,mx;
var md=false;
var sh=0;
var en=false;
window.onload=function(){
page=document.getElementsByTagName("div");
if(page.length>0){
page[0].style.zIndex=2;
}
for(i=0;i<page.length;i++){
page[i].className="page";
page[i].innerHTML+="<span class=\"tip\">第 "+(i+1)+"/"+page.length+" 页 提示：左右拖拽翻页</span>";
page[i].id="page"+i;
page[i].i=i;
page[i].onmousedown=function(e){
if(!en){
if(!e){e=e||window.event;}
lm=this.offsetLeft;
mx=(e.pageX)&#63;e.pageX:e.x;
this.style.cursor="w-resize";
md=true;
if(document.all){
this.setCapture();
}else{
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
}
}
}
page[i].onmousemove=function(e){
if(md){
en=true;
if(!e){e=e||window.event;}
var ex=(e.pageX)&#63;e.pageX:e.x;
this.style.left=ex-(mx-lm)+350;
if(this.offsetLeft<75){
var cu=(this.i==0)&#63;page.length-1:this.i-1;
page[sh].style.zIndex=0;
page[cu].style.zIndex=1;
this.style.zIndex=2;
sh=cu;
}
if(this.offsetLeft>75){
var cu=(this.i==page.length-1)&#63;0:this.i+1;
page[sh].style.zIndex=0;
page[cu].style.zIndex=1;
this.style.zIndex=2;
sh=cu;
}
}
}
page[i].onmouseup=function(){
this.style.cursor="default";
md=false;
if(document.all){
this.releaseCapture();
}else{
window.releaseEvents(Event.MOUSEMOVE|Event.MOUSEUP);
}
flyout(this);
}
}
}
function flyout(obj){
if(obj.offsetLeft<75){
if( (obj.offsetLeft + 350 - 20) > -275 ){
obj.style.left=obj.offsetLeft + 350 - 20;
window.setTimeout("flyout(id('"+obj.id+"'));",0);
}else{
obj.style.left=-275;
obj.style.zIndex=0;
flyin(id(obj.id));
}
}
if(obj.offsetLeft>75){
if( (obj.offsetLeft + 350 + 20) < 1125 ){
obj.style.left=obj.offsetLeft + 350 + 20;
window.setTimeout("flyout(id('"+obj.id+"'));",0);
}else{
obj.style.left=1125;
obj.style.zIndex=0;
flyin(id(obj.id));
}
}
}
function flyin(obj){
if(obj.offsetLeft<75){
if( (obj.offsetLeft + 350 + 20) < 425 ){
obj.style.left=obj.offsetLeft + 350 + 20;
window.setTimeout("flyin(id('"+obj.id+"'));",0);
}else{
obj.style.left=425;
en=false;
}
}
if(obj.offsetLeft>75){
if( (obj.offsetLeft + 350 - 20) > 425 ){
obj.style.left=obj.offsetLeft + 350 - 20;
window.setTimeout("flyin(id('"+obj.id+"'));",0);
}else{
obj.style.left=425;
en=false;
}
}
}
</script>
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</div>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。

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