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javascript - JS : Slideshow inaccurate result

转载 作者:行者123 更新时间:2023-11-28 00:03:07 25 4
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嗨,我编写了这个简单的 javascript 幻灯片,因为我想用 javascript 编写自己的幻灯片。它会按照设定的时间间隔自动更改图像。但是,当我尝试单击后退和前进功能时,结果不准确或图像是有序的。

	var images = ["http://i1214.photobucket.com/albums/cc487/myelstery/1.jpg","http://i1214.photobucket.com/albums/cc487/myelstery/2.jpg","http://i1214.photobucket.com/albums/cc487/myelstery/3.jpg"];

var i = 0;
var count = images.length;

function slidingImages()
{
i = i % count;
document.banner.src = images[i];
i++;
}

function forward()
{
i = (i + 1) % count;
document.banner.src=images[i];
}

function backward()
{
if (i <= 0)
{
i = count - 1;
}
else
{
i--;
}
document.banner.src=images[i];
}

window.onload = function()
{
slidingImages(),setInterval(slidingImages, 3000)
};
<center>
<p>
<img src="images/1.jpg" name="banner" id="name"/>
</p>
<input type="button" value="&laquo;prev" onClick="backward()">
<input type="button" value="next&raquo;" onClick="forward()">
</center>

有什么解决方案可以使我的幻灯片显示准确?

最佳答案

当鼠标位于红色矩形内时,这将暂停自动行为,并在鼠标离开红色矩形后继续自动模式。这些按钮当然可以按预期工作。

   <!doctype html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style>
fieldset { width: -moz-fit-content; width: -webkit-fit-content; width: fit-content; border: 1px solid red; }
</style>
</head>
<body>
<section>
<p>
<img src="images/1.jpg" name="banner" id="name"/>
</p>
<fieldset id="control">
<input id="prev" type="button" value="◄">
<input id="next" type="button" value="►">
</fieldset>
</section>
<script>
var images = ["http://i1214.photobucket.com/albums/cc487/myelstery/1.jpg","http://i1214.photobucket.com/albums/cc487/myelstery/2.jpg","http://i1214.photobucket.com/albums/cc487/myelstery/3.jpg"];

var i = -1;
var count = images.length;
var prev = document.getElementById('prev');
var next = document.getElementById('next');
var control = document.getElementById('control');
var autoSlide;


window.onload = auto;
function auto() {
autoSlide = setInterval(fwd, 3000) };
function pause() {
clearInterval(autoSlide);
}

function fwd() {

if (i >= 0 && i < 2)
{
i += 1;
}
else
{
i = 0;
}
document.banner.src=images[i];
}

function rev() {

if (i > 0 && i <= 2)
{
i -= 1;
}
else
{
i = 2;
}
document.banner.src=images[i];
}

prev.addEventListener('click', function() {

rev();
}, false);

next.addEventListener('click', function() {
fwd();
}, false);

control.addEventListener('mouseover', function() {

pause();
}, false);

control.addEventListener('mouseout', function() {
auto();
}, false);


</script>
</body>
</html>

关于javascript - JS : Slideshow inaccurate result,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31598906/

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