官网首页大图轮滚代码实现
时间: 2023-08-15 22:08:44 浏览: 32
官网首页大图轮播通常使用 JavaScript 或 jQuery 实现。以下是一个简单的示例代码:
HTML 代码部分:
```
<div class="slideshow-container">
<div class="mySlides fade">
<img src="img1.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img2.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src="img3.jpg" style="width:100%">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
```
CSS 代码部分:
```
.slideshow-container {
max-width: 1000px;
position: relative;
margin: auto;
}
.mySlides {
display: none;
width: 100%;
height: 500px;
}
.prev, .next {
position: absolute;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
padding: 16px;
color: white;
font-weight: bold;
font-size: 20px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
.prev:hover, .next:hover {
background-color: rgba(0,0,0,0.8);
}
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
.dot {
cursor: pointer;
height: 15px;
width: 15px;
margin: 0 2px;
background-color: #bbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active, .dot:hover {
background-color: #717171;
}
```
JavaScript 代码部分:
```
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";
}
```
以上代码实现了一个基本的图片轮播功能,您可以根据需要进行修改和扩展。