JS method to obtain the key values ​​of the left and right mouse buttons_javascript skills

function test() 
{ 
alert(event.x+" "+event.y); 
alert(event.button); 
} 
/*右键菜单不显示*/ 
document.oncontextmenu=function() 
{ 
return false; 
} 
/*document.onmousedown=function() 
{ 
if(event.button==1) 
{alert("left")} 
if(event.button==2) 
{alert("right")} 
}*/ 
document.onkeydown=function() 
{ 
alert(event.keyCode); 
} 
</script>

event.x mouse horizontal axis
event.y mouse vertical axis
event.keycode keyboard value
events.button==0 Default. No buttons were pressed.
events.button==1 left mouse button
events.button==2 Right mouse button
events.button==3 Press the left and right mouse buttons simultaneously
events.button==4 middle mouse button
events.button==5 The left and middle mouse buttons are pressed simultaneously
events.button==6 The right and middle mouse buttons are pressed simultaneously
events.button==7 All three keys pressed