js屏蔽F12等键盘事件和鼠标事件

屏蔽F12

document.onkeydown = function(){
    if(window.event && window.event.keyCode == 123) {
        alert("F12被禁用");
        event.keyCode=0;
        event.returnValue=false;
    }
}

屏蔽复制

document.oncopy = function(event) {
            if (window.event) {
                event = window.event;
            }
            try {
                var the = event.srcElement;
                if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
                    return false;
                }
                return true;
            } catch (e) {
                return false;
            }
        }

屏蔽选中

document.onselectstart = function(event) {
            if (window.event) {
                event = window.event;
            }
            try {
                var the = event.srcElement;
                if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
                    return false;
                }
                return true;
            } catch (e) {
                return false;
            }
        }

屏蔽鼠标右键

document.oncontextmenu = function(event) {
            if (window.event) {
                event = window.event;
            }
            try {
                var the = event.srcElement;
                if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
                    return false;
                }
                return true;
            } catch (e) {
                return false;
            }
        }

屏蔽剪切

document.oncut = function(event) {
            if (window.event) {
                event = window.event;
            }
            try {
                var the = event.srcElement;
                if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
                    return false;
                }
                return true;
            } catch (e) {
                return false;
            }
        }

屏蔽粘贴

document.onpaste = function(event) {
            if (window.event) {
                event = window.event;
            }
            try {
                var the = event.srcElement;
                if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
                    return false;
                }
                return true;
            } catch (e) {
                return false;
            }
        }