JavaScript实现简单的轮播图效果
HTMl
<body>
<p>图片轮播</p>
<div class="imgBox">
<img class="img-slide img1" src="./2.jpg" alt="1">
<img class="img-slide img2" src="./3.jpg" alt="2">
<img class="img-slide img3" src="./4.jpg" alt="3">
</div>
</body>CSS
<style type="text/css">
/*标题样式*/
p{
text-align: center;
font-size: 25px;
color: cadetblue;
font-family: fantasy;
}
.imgBox{
border-top: 2px solid cadetblue;
width: 50%;
height: 500px;
margin: 0 auto;
}
.imgBox img{
width: 60%;
height: 300px;
margin: 0 auto;
padding-top: 30px;
}
.img1{
display: block;
}
.img2{
display: none;
}
.img3{
display: none;
}
</style>JAVAScript
<script type="text/javascript">
var index=0;
//改变图片
function ChangeImg() {
index++;
var a=document.getElementsByClassName("img-slide");
if(index>=a.length) index=0;
for(var i=0;i<a.length;i++){
a[i].style.display='none';
}
a[index].style.display='block';
}
//设置定时器，每隔两秒切换一张图片
setInterval(ChangeImg,1000);
</script>
