在網頁開發中，有些時候我們不想讓使用者去複製或者貼上該網頁的東西，那麼下面的幾個方法就非常有用了，貢獻給大家！

//遮蔽右鍵選單
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;
    }
}


//遮蔽貼上
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;
    }
}


//遮蔽複製
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;
    }
}


//遮蔽剪下
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;
    }
}


//遮蔽選中
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;
    }
}
 

網頁退出提示的方法：

window.onbeforeunload = function(event){
            event = event || window.event;
            event.returnValue = ' ';
    }

移動端中，遮蔽類似iphone的預設滑動事件用一下方法：

//禁用瀏覽器的預設滑動事件
    var preventBehavior = function(e) {
        e.preventDefault();
    };
    // Enable fixed positioning
    document.addEventListener("touchmove", preventBehavior, false);