htmljs网页轮播图
时间: 2023-12-27 10:04:48 浏览: 37
以下是一个简单的HTML和JavaScript实现网页轮播图的例子:
```html
<!DOCTYPE html>
<html>
<head>
<style>
.slideshow-container {
position: relative;
width: 100%;
height: 300px;
overflow: hidden;
}
.slide {
position: absolute;
width: 100%;
height: 100%;
display: none;
}
.slide.active {
display: block;
}
.arrow {
position: absolute;
top: 50%;
transform: translateY(-50%);
width: 50px;
height: 50px;
background-color: gray;
color: white;
text-align: center;
line-height: 50px;
cursor: pointer;
}
.arrow.left {
left: 10px;
}
.arrow.right {
right: 10px;
}
.dots {
position: absolute;
bottom: 10px;
left: 50%;
transform: translateX(-50%);
display: flex;
}
.dot {
width: 10px;
height: 10px;
background-color: gray;
border-radius: 50%;
margin: 0 5px;
cursor: pointer;
}
.dot.active {
background-color: white;
}
</style>
</head>
<body>
<div class="slideshow-container">
<div class="slide active">
<img src="image1.jpg" alt="Image 1">
</div>
<div class="slide">
<img src="image2.jpg" alt="Image 2">
</div>
<div class="slide">
<img src="image3.jpg" alt="Image 3">
</div>
<div class="arrow left">❮</div>
<div class="arrow right">❯</div>
<div class="dots">
<div class="dot active"></div>
<div class="dot"></div>
<div class="dot"></div>
</div>
</div>
<script>
var slides = document.getElementsByClassName("slide");
var dots = document.getElementsByClassName("dot");
var currentSlide = 0;
function showSlide(n) {
for (var i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (var i = 0; i < dots.length; i++) {
dots[i].classList.remove("active");
}
slides[n].style.display = "block";
dots[n].classList.add("active");
}
function nextSlide() {
currentSlide++;
if (currentSlide >= slides.length) {
currentSlide = 0;
}
showSlide(currentSlide);
}
function previousSlide() {
currentSlide--;
if (currentSlide < 0) {
currentSlide = slides.length - 1;
}
showSlide(currentSlide);
}
function goToSlide(n) {
currentSlide = n;
showSlide(currentSlide);
}
var arrowLeft = document.querySelector(".arrow.left");
var arrowRight = document.querySelector(".arrow.right");
arrowLeft.addEventListener("click", previousSlide);
arrowRight.addEventListener("click", nextSlide);
for (var i = 0; i < dots.length; i++) {
dots[i].addEventListener("click", function() {
var dotIndex = Array.prototype.indexOf.call(dots, this);
goToSlide(dotIndex);
});
}
showSlide(currentSlide);
</script>
</body>
</html>
```