<html>
<head>
<title>js判斷鼠標左、中、右鍵哪個被點擊-柯樂義</title>
<script type="text/javascript">
function whichButton(event)
{
var btnNum = event.button;
if (btnNum==2)
{
alert("您點擊了鼠標右鍵！")
}
else if(btnNum==0)
{
alert("您點擊了鼠標左鍵！")
}
else if(btnNum==1)
{
alert("您點擊了鼠標中鍵！");
}
else
{
alert("您點擊了" + btnNum+ "號鍵，我不能確定它的名稱。");
}
}
</script>
</head>
<body onmousedown="whichButton(event)">
<p>請在文檔中點擊鼠標。一個消息框會提示出您點擊了哪個鼠標按鍵。</p>
</body>
</html>
