鼠标事件
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<div>
<button onmousedown="whichButton(event)">点击</button>
</div>
</body>
<script type="text/javascript">
function whichButton(event)
{
var btnNum = event.button;
if (btnNum==2)
{
alert("您点击了鼠标右键！")
}
else if(btnNum==0)
{
alert("您点击了鼠标左键！")
}
else if(btnNum==1)
{
alert("您点击了鼠标中键！");
}
else
{
alert("您点击了" + btnNum+ "号键，我不能确定它的名称。");
}
}
</script>
</html>