JavaScript轮播图代码
时间: 2023-09-04 19:15:12 浏览: 35
以下是一个简单的JavaScript轮播图代码:
HTML代码:
```html
<div class="slideshow-container">
<div class="mySlides fade">
<img src="img1.jpg">
</div>
<div class="mySlides fade">
<img src="img2.jpg">
</div>
<div class="mySlides fade">
<img src="img3.jpg">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
```
CSS代码:
```css
.slideshow-container {
max-width: 1000px;
position: relative;
margin: auto;
}
.mySlides {
display: none;
}
.prev,
.next {
position: absolute;
top: 50%;
width: auto;
margin-top: -22px;
padding: 16px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
cursor: pointer;
}
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
.prev:hover,
.next:hover {
background-color: rgba(0, 0, 0, 0.8);
}
.fade {
animation-name: fade;
animation-duration: 1.5s;
}
@keyframes fade {
from {
opacity: 0.4;
}
to {
opacity: 1;
}
}
```
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("mySlides");
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";
}
```
其中,HTML代码中的`img1.jpg`、`img2.jpg`、`img3.jpg`可以替换成你自己的图片路径。CSS代码中的样式可以根据需要进行调整。JavaScript代码中的`slideIndex`变量表示当前显示的图片索引,`showSlides`函数用于控制图片的显示与隐藏,`plusSlides`函数用于切换上一张或下一张图片。