直接上干货
<html>
<head>
<title>Banner Cycler</title>
<script>
var banners = ["001.jpg","002.jpg","003.jpg"]; // 图片地址
var counter = 0;
function run(){
setInterval(cycle,1000); //重复运行cycle函数，周期100ms
}
function cycle(){
counter++;
if(counter == banners.length)
counter = 0;
document.getElementById("banner").src = banners[counter];
}
</script>
</head>
<body onl oad = "run();">
<img id="banner" alt="banner" src="001.jpg">
</body>
</html>