js自动播放幻灯片函数

JavaScript025

js自动播放幻灯片函数,第1张

<!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/htmlcharset=utf-8" />

<title>无标题文档</title>

<style>

*{ padding:0margin:0}

.hy-hdp { display:blockoverflow:hidden}

.hy-hdp .pic{ width:400pxheight:320pxposition:relative}

img{ position:absoluteleft:0top:0width:400pxheight:320px}

li{ list-style:nonewidth:20pxheight:20pxcolor:#FFFFFFbackground:redline-height:20pxfloat:left}

</style>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>

<script>

$(document).ready(function(){

/* var $aImg=$("#abc .pic img")

var $aLi=$("#abc .num li")

hy.Init()

hy.m($aImg,$aLi,0)

$aImg.each(function(i,ele){

$(this).click(function(){

$aLi.css("background","red")

$aLi.eq(i).css({

"background" : "green"

})

})

})

$aLi.each(function(index,ele){

$(this).click(function(){

hy.m($aImg,$aLi,index)

})

})*/

$("#abc").hy(2)

$("#bbb").hy(0)

})

(function($,undefined){

$.fn.hy = function(o){

var $obj = $(this)

return new HY($obj,o)

}

var HY = function($obj,o){

var pp = {}

pp.T = null

pp.ii = 0

pp.img = $obj.find(".pic img")

pp.li = $obj.find(".num li")

pp.index = o

m(pp)

pp.li.each(function(index,ele){

$(this).click(function(){

clearTimeout(pp.T)

pp.index = index

m(pp)

})

})

}

function m(o){

o.li.css("background","red")

o.li.eq(o.index).css("background","green")

o.img.each(function(index,ele){

if(index==o.index){

$(this).css({

"zIndex":2,

"opacity" : 0

})

}else if(index==o.ii){

$(this).css("zIndex",1)

}else{

$(this).css("zIndex",0)

}

})

o.img.eq(o.index).animate(

{

"opacity" : 1

},

1000

)

o.ii = o.index

o.index = o.index+1

o.index = o.index>=o.li.length?0:o.index

o.T = setTimeout(function(){

m(o)

},2000)

}

})(jQuery)

</script>

</head>

<body>

<!--<div id="abc" class="hy-hdp" style="float:leftmargin:0 10px">

<div class="pic">

<img src="images/1.jpg" />

<img src="images/2.jpg" />

<img src="images/3.jpg" />

<img src="images/4.jpg" />

<img src="images/5.jpg" />

<img src="images/6.jpg" />

</div>

<ul class="num">

<li>1</li>

<li>2</li>

<li>3</li>

<li>4</li>

<li>5</li>

<li>6</li>

</ul>

</div>-->

<div id="bbb" class="hy-hdp style="float:leftmargin:0 10px">

<div class="pic">

<img src="images/1.jpg" />

<img src="images/2.jpg" />

<img src="images/3.jpg" />

<img src="images/4.jpg" />

<img src="images/5.jpg" />

<img src="images/6.jpg" />

</div>

<ul class="num">

<li>1</li>

<li>2</li>

<li>3</li>

<li>4</li>

<li>5</li>

<li>6</li>

</ul>

</div>

</body>

</html>

新建一个文件夹dome,

在文件下新建一个文件夹img 放入5张名称为1,2,3,4,5 格式为“.jpg”的图片文件。

在新建一个dome.html 文件 内容如下:

<html>

<head>

<meta charset="UTF-8"/>

<title></title>

<style type="text/css">

*{margin: 0padding: 0}

#a1{

width: 600px

height: 500px

border: 10px silver solid

animation:backgroundImg 5s infinite

-webkit-animation:backgroundImg 5s  infinite

}

@keyframes backgroundImg{

0%{background-color: #0000FF}

25%{background-color: #0099FF}

50%{background-color: #00FFFF}

75%{background-color: #99FFFF}

100%{background-color: #FFFFFF}

}

@-webkit-keyframes backgroundImg{

0%{background-color: #0000FF}

25%{background-color: #0099FF}

50%{background-color: #00FFFF}

75%{background-color: #99FFFF}

100%{background-color: #FFFF00}

}

#backImg{

width: 500px

height: 490px

/*border: 5px red solid*/

margin-left:45px

z-index: 100

background-size:100% 100%

}

a:hover{

background-color:#0000FF

border: 5px springgreen solid

width: 20px

}

a{

display: block

z-index:

width: 30px

height: 30px

text-align: center

line-height: 30px

color: beige

font-weight: 300

border-radius:50%

font-size: 2em

background-color:#0099FF

position: absolute

top: 255px

box-shadow: none

}

#right{

left:580px

}

span{

display: block

width: 50px

height: 10px

background-color: #99FFFF

float: right

margin-left: 20px

position: relative

bottom: 50px

right: 100px

}

#show{

width: 200px

height: 100px

border: 1px red solid

position: absolute

bottom: 230px

right: 150px

background-size:100% 100%

}

</style>

</head>

<body>

<div id="a1">

<a id="left">&lt</a>

<a id="right">&gt</a>

<div id="backImg"></div>

<div id="foot"></div>

</div>

<script type="text/javascript">

var div=document.getElementById("a1")

var backImg=document.getElementById("backImg")

var a_left=document.getElementById("left")

var a_right=document.getElementById("right")

var i=0

function backImage(){

i++

backImg.style.backgroundImage="url(img/" +i+".jpg)"

setTimeout(backImage,7000)

if(i>=5){

i=0

}

}

backImage()

a_left.onclick=function(){

i--

if(i<=0||i>5){

i=5

}

backImg.style.backgroundImage="url(img/" +i+".jpg)"

}

a_right.onclick=function(){

i++

if(i<=0||i>5){

i=1

}

backImg.style.backgroundImage="url(img/" +i+".jpg)"

}

for (var j = 0j <3j++) {

var span=document.createElement("span")

span.id="span_"+j

div.appendChild(span)

span.onmouseover=function(){

show(event)

}

}

function show(e) {

backImg.style.opacity="0.5"

var span = e.target

var div = document.createElement("div")

div.id = "show"

span.parentNode.appendChild(div)

console.log(span.id)

if(span.id=="span_2"){

i-=1

console.log(i)

if(i<=0||i>5){

i=5

}

div.style.backgroundImage="url(img/" +i+".jpg)"

}else if(span.id=="span_1"){

div.style.backgroundImage="url(img/" +i+".jpg)"

}else if(span.id=="span_0"){

i+=1

if(i<=0||i>5){

i=1

}

div.style.backgroundImage="url(img/" +i+".jpg)"

}

span.onmouseout = function() {

backImg.style.opacity="initial"

this.parentNode.removeChild(div)

}

span.onclick=function(){

backImg.style.backgroundImage="url(img/" +i+".jpg)"

}

}

</script>

</body>

</html>

单独的图片控制,用这个:

代码如下:

<script>

var abc=document.getElementById("abc")

var imgs=abc.getElementsByTagName("img")

for (var i=0,gg=imgs[i]i++)

g.onload=function(){if (this.width>300){this.width=300}else{if (this.height>300)this.height=300}}

</script>