<html>
<head>
<script type="text/javascript" >
function changeImg(imgNumber) {
var myImages = ["1.jpg", "2.jpg", "3.jpg"];
var imgShown = document.body.style.backgroundImage;
var newImgNumber =Math.floor(Math.random()*myImages.length);
document.body.style.backgroundImage = 'url('+myImages[newImgNumber]+')';
document.body.style.backgroundSize = '100% 100%';
document.body.style.backgroundRepeat = 'no-repeat';
document.body.style.backgroundAttachment= 'fixed';
}
setInterval(changeImg,5000)
window.onload = changeImg;
</script>
</head>
<body>
</body>
我希望旧图片淡出,新图片会淡入。出于某种原因,我无法弄明白。感谢。
答案 0 :(得分:2)
使用jquery和css,你可以改变背景。
jQuery :(在图片加载函数中)
$('body').css('background-image', "url('" + $images[0].src + "')");
$('#wrapper').removeClass("bgFade", 700);
CSS:
.bgFade{
background-color:#FFF;
}
答案 1 :(得分:0)
Here's an easy solution with JQuery (If you're not opposed to it.)
JQuery的
jQuery(document).ready(function(){
$(function(){
$('.fadein a:gt(0)').hide();
setInterval(function(){
$('.fadein :first-child').fadeOut(1000)
.next('a').fadeIn(1000)
.end().appendTo('.fadein');},
2000);
});
});
HTML
<div class="fadein">
<a href="" id="rotatingImage1"></a>
<a href="" id="rotatingImage2"></a>
<a href="" id="rotatingImage3"></a>
</div>
CSS
#rotatingImage1{background:url('http://lorempixel.com/500/501/') no-repeat;position:absolute;width:500px;height:500px;}
#rotatingImage2{background:url('http://lorempixel.com/500/502/') no-repeat;position:absolute;width:500px;height:500px;}
#rotatingImage3{background:url('http://lorempixel.com/500/503/') no-repeat;position:absolute;width:500px;height:500px;}