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  • 网页屏蔽f12、右键菜单等操作

    1、屏蔽f12

    document.onkeydown = function(){
        if(window.event && window.event.keyCode == 123) {
            alert("F12被禁用");
            event.keyCode=0;
            event.returnValue=false;
        }
        if(window.event && window.event.keyCode == 13) {
            window.event.keyCode = 505;
        }
        if(window.event && window.event.keyCode == 8) {
            alert(str+"
    请使用Del键进行字符的删除操作!");
            window.event.returnValue=false;
        }
    }
    

    2、屏蔽右键菜单

    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;
        }
    }

    3、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;
        }
    } 

    4、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;
        }
    } 

    5、屏蔽剪贴

    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;
        }
    } 

    6、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;
        }
    }
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  • 原文地址:https://www.cnblogs.com/qjykn/p/9712428.html
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