图片时钟
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>title</title>
</head>
<body>
<img src="" alt="" id="img" />
<script>
function f1() {
//获取当前时间
var time = new Date();
//获取小时
var hour = time.getHours();
//获取秒
var second = time.getSeconds();
hour = hour < 10 ? "0" + hour : hour;
second = second < 10 ? "0" + second : second;
document.getElementById("img").src="meimei/"+hour+"_"+second+".jpg";
}
f1();
//页面加载完毕后,过了1秒才执行函数的代码
setInterval(f1,1000);
</script>
</body>
</html>
