我要评论前端js禁止鼠标右键及f12禁止查看源代码
html 在中，f12审查元素的情况下，大家都可以随机更改一部分页面的代码，注入恶意js等等，这种情况避免也不难，虽然还能看到一部分h5，但是无法修改。一、屏蔽f12 审查元素
<script>
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请使用del键进行字符的删除操作！");
window.event.returnvalue = false;
}
}
</script>
二、屏蔽右键菜单
<script>
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;
}
}
三、屏蔽粘贴
<script>
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;
}
}
</script>
四、屏蔽复制
<script>
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;
}
}
</script>
五、屏蔽剪切
<script>
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;
}
}
六、屏蔽选中
<script>
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;
}
}
</script>
（本文转自博客园的clark_kent，感谢经验分享！）
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