JS屏蔽右键功能

 

function click(e) {
    if (document.all) {
        if (event.button == 1 || event.button == 2 || event.button == 3) {
            oncontextmenu = 'return false';
        }
    }
    if (document.layers) {
        if (e.which == 3) {
            oncontextmenu = 'return false';
        }
    }
}
if (document.layers) {
    document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown = click;
document.oncontextmenu = new Function("return false;")

var travel = true
var hotkey = 17 /* hotkey即为热键的键值,是ASII码,这里99代表c键 */
if (document.layers)
    document.captureEvents(Event.KEYDOWN)
function gogo(e) {
    if (document.layers) {
        if (e.which == hotkey && travel) {
            alert("操作错误.或许是您按错了按键!");
        }
    }
    else if (document.all) {
        if (event.keyCode == hotkey && travel) { alert("操作错误.或许是您按错了按键!"); }
    }
}

document.onkeydown = gogo

 

此代码直接复制到一个JS文件中直接引用就行