js中的鼠标右键点击事件

https://www.cnblogs.com/sea-stream/p/9638870.html

 

 window.onload = function(){//去掉默认的contextmenu事件，否则会和右键事件同时出现。document.oncontextmenu = function(e){e.preventDefault();};document.getElementById("test").onmousedown = function(e){if(e.button ==2){alert("你点了右键");}else if(e.button ==0){alert("你点了左键");}else if(e.button ==1){alert("你点了滚轮");}}
}