GIF动态图：
代码：
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script src="js/jquery-3.3.1.js"></script>
</head>
<body>
<div id="div11"></div>
</body>
<script>
$(function(){
setInterval(
function(){
var date = new Date();
var s = date.getSeconds();
var m = date.getMinutes();
var h = date.getHours();
$("#div11").text(h+":"+m+":"+s);
},
1000);
});
</script>
</html>