Javascript 自动切换到下一个图像
我有以下代码用于显示悬停时更改的多个图像,但我还想添加一个功能,如果我不手动更改图像,该功能将自动更改图像。Javascript 自动切换到下一个图像,javascript,html,css,image,Javascript,Html,Css,Image,我有以下代码用于显示悬停时更改的多个图像,但我还想添加一个功能,如果我不手动更改图像,该功能将自动更改图像。 "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"
"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>Untitled Document</title><br />
</head>
<body>
<p>
<script type="text/javascript" language="javascript">
function changeImage(img){
document.getElementById('bigImage').src=img;
}
</script>
<img src="../Pictures/lightcircle.png" alt="" width="284" height="156" id="bigImage"
/>
<p> </p>
<div>
<p>
<img src="../Pictures/lightcircle2.png" height="79" width="78"
onmouseover="changeImage('../Pictures/lightcircle2.png')"/>
</p>
<p><img src="../Pictures/lightcircle.png" alt="" width="120" height="100"
onmouseover="changeImage('../Pictures/lightcircle.png')"/></p>
<p><img src="../Pictures/lightcircle2.png" alt="" width="78" height="79"
onmouseover="changeImage('../Pictures/lightcircle2.png')"/></p>
<p> </p>
</br>
</div>
</body>
</html>
”http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
无标题文档
功能更改图像(img){
document.getElementById('bigImage')。src=img;
}
我想做的是自动更改使用javascript显示的图像。如何才能做到这一点?使用setInterval运行一个函数来更改图像src
var x = 0;
var images = new Array("../Pictures/lightcircle2.png","../Pictures/lightcircle.png");
var i = setInterval(auto, 3000);
function auto()
{
x++;
if (x == images.length)
x=0;
document.getElementById('bigImage').src=images[x];
}
这将有助于您:
听起来你想要一个旋转木马。如果是这样,试试这个 将此添加到JavaScript中
// The list of images you want to cycle through
var imageRotation = [
'../Pictures/lightcircle.png',
'../Pictures/lightcircle2.png'
];
// The current image being displayed
var currentImage = 0;
// A variable to hold the timer
var t;
// Call this to automatically start rotation. Currently set for a 5 sec rotation
function startCarousel(){
t=setInterval(changeCarousel,5000);
}
// Moves to the next picture
function changeCarousel(){
// Change to the next image
currentImage++;
// If there isn't a next image, go back to the start
if (currentImage == imageRotation.length) currentImage = 0;
// Change the image
document.getElementById('bigImage').src=imageRotation[currentImage];
}
然后将函数修改为
function changeImage(img){
// Stops the rotation
clearInterval(t);
// Assigns currentImage to the image they selected
currentImage = imageRotation.indexOf(img);
// Swap the image
document.getElementById('bigImage').src=imageRotation[currentImage];
// Start the rotation again in 10 sec
setTimeout(startCarousel, 10000);
}
你可以用一个调用函数的间隔来改变pic periodicallyokey你能告诉我更多吗。我不擅长javascript不幸的是这取决于你。你可以有一系列的img链接,然后循环浏览。我没有任何回应就这么做了。我用changeImage函数改成了你写的,我犯了一个错误。哎呀。我在startCarousel()中使用了setTimeout而不是setInterval,您需要从setInterval和setTimeout调用中删除引号和方括号。我已经更新了代码