<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>网页标题</title>
</head>
<body>
<img src="images/jd1.png" Id="replace" />
<script type="text/javascript">
var sac = document.getElementById("replace")
sac.onmouseover=function(){
sac.src = "images/jd2.png";
}
sac.onmouseout=function(){
sac.src = "images/jd1.png";
}
</script>
</body>
</html>
鼠标放上换图片
不会插入视频，如看效果麻烦点击下面链接。
https://pan.baidu.com/s/1jIqcw5K
原文：http://www.cnblogs.com/aria-h2o/p/6087550.html