koala focus on personal technology sharing
Shield f12 review
<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>
Right menu screen
<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;
}
}
</script>
Paste shield
<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>
Copy shield
<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>
Cut shield
<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;
}
}<script>
Select shield
<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>
The code gets you in the development of some special occasions you can use, but you can only use this white lie about, ha ha! My favorite out for everyone to share!