网页禁止复制粘贴/禁止右键代码/禁止查看源码js代码

网页禁止复制粘贴/禁止右键代码/禁止查看源码js代码

<script type="text/javascript">
        // 禁止保存，拖拽图片
        for(i in document.images) {
            document.images[i].ondragstart = function() {
                return false;
            };
        }

        //当键盘按下时
        document.onkeydown = function() {
            //禁止F12
            if(window.event && window.event.keyCode == 123) {
                alert("F12调试功能已被禁用请勿使用！");
                window.event.keyCode = 0;
                window.event.returnValue = false;
            }
            //禁止Ctrl+U查看源代码
            if(event.ctrlKey && window.event.keyCode == 85) {
                window.event.returnValue = false;
            }
            //禁止Ctrl+S网页另存为
            if(event.ctrlKey && window.event.keyCode == 83) {
                window.event.returnValue = false;
            }
            if(window.event && window.event.keyCode == 8) {
                alert(str + "\n请使用Del键进行字符的删除操作！");
                window.event.returnValue = false;
            }
        }
        //屏蔽右键菜单
        document.oncontextmenu = disable;
                //屏蔽复制
        document.oncopy = disable;
        //屏蔽粘贴
        document.onpaste = disable;
        //屏蔽剪切
        document.oncut = disable;
        //屏蔽选中（选择文字）
        document.onselectstart = disable;

        function disable(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;
            }
        }
    </script>