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JavaScript屏蔽浏览器右键功能按钮

这段js代码加到你网页上，即可屏蔽鼠标右键菜单、复制粘贴、选中等。

//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; 
    } 
} 
 
//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; 
    } 
} 
 
//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; 
    } 
}