<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script type="text/javascript">
window.onload = function(){
//去掉默認的contextmenu事件，否則會和右鍵事件同時出現。
document.oncontextmenu = function(e){
e.preventDefault();
};
document.getElementById("test").onmousedown = function(e){
if(e.button ==2){
alert("你點了右鍵");
}else if(e.button ==0){
alert("你點了左鍵");
}else if(e.button ==1){
alert("你點了滾輪");
}
}
}
</script>
</head>
<body>
<div style="width: 400px;height:400px;margin:auto;border:1px solid pink" id="test"></div>
</body>
</html>
