在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>菜鸟教程(cainiaoplay.com)</title>
<script>
function bigImg(x)
{
	x.style.height="64px";
	x.style.width="64px";
}

function normalImg(x)
{
	x.style.height="32px";
	x.style.width="32px";
}
</script>
</head>
<body>

<img onmousemove="bigImg(this)" onmouseout="normalImg(this)" border="0" src="smiley.gif.html" alt="Smiley" width="32" height="32">

<p>当用户将鼠标移动到图片时触发 bigImg() 函数。该函数使图片变大。</p>
<p>当用户将鼠标移开时触发normalImg() 函数。该函数使图片变回原来大写。</p>

</body>
</html>
源代码

动行结果
