禁用审查元素

//禁用鼠标右键
window.document.oncontextmenu = function() {
	return false;
}
//禁用复制
window.document.onselectstart = function() {
	return false;
}
//禁用F12
document.onkeydown = function() {
	if(window.event && window.event.keyCode == 123) {
		event.keyCode = 0;
		event.returnValue = false;
		return false;
	}
};