帮我用html,css实现轮播图并且图上有小点可以点击切换
时间: 2024-03-15 09:44:52 浏览: 16
好的,以下是一个简单的实现方式:
HTML代码:
```html
<div class="slideshow-container">
<div class="slideshow-image fade">
<img src="image1.jpg" alt="Image 1">
</div>
<div class="slideshow-image fade">
<img src="image2.jpg" alt="Image 2">
</div>
<div class="slideshow-image fade">
<img src="image3.jpg" alt="Image 3">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<div class="dots-container" style="text-align:center">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
</div>
```
CSS代码:
```css
.slideshow-container {
max-width: 500px;
position: relative;
margin: auto;
}
.slideshow-image {
display: none;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: auto;
}
.fade {
animation-name: fade;
animation-duration: 1.5s;
}
@keyframes fade {
from { opacity: .4 }
to { opacity: 1 }
}
.prev, .next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
margin-top: -22px;
padding: 16px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
}
.next {
right: 0;
}
.prev:hover, .next:hover {
background-color: rgba(0, 0, 0, 0.8);
}
.dots-container {
padding: 20px;
text-align: center;
}
.dot {
cursor: pointer;
height: 15px;
width: 15px;
margin: 0 10px;
background-color: #bbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active, .dot:hover {
background-color: #717171;
}
```
JavaScript代码:
```javascript
var slideIndex = 1;
showSlides(slideIndex);
function plusSlides(n) {
showSlides(slideIndex += n);
}
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("slideshow-image");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) { slideIndex = 1 }
if (n < 1) { slideIndex = slides.length }
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex - 1].style.display = "block";
dots[slideIndex - 1].className += " active";
}
```
以上代码实现了三张图片的轮换,每张图片下方都有一个小圆点,点击圆点可以切换到对应的图片。此外,还加入了左右箭头,点击箭头可以切换上一张或下一张图片。你可以根据需要修改图片数量。