網頁屏蔽f12、右鍵、禁止複製與禁止查看源代碼

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本文鏈接：https://blog.csdn.net/jx950915/article/details/80346530

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+"\n請使用Del鍵進行字符的刪除操作！");
        window.event.returnValue=false;
    }
}

2、屏蔽右鍵菜單

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、屏蔽選中

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、屏蔽複製

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、屏蔽剪貼

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、屏蔽粘貼

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;
    }
}