如何使用JavaScript禁用浏览器的后退按钮？
要禁用Web浏览器的后退按钮，请尝试运行以下代码。这是当前HTML页面的代码，
示例
<html>
<head>
<title>Disable Browser Back Button</title>
<script src = "http://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
<script src = "http://cdn.staticfile.org/jqueryui/1.12.1/jquery-ui.min.js"></script>
</head>
<body>
<a href = "newpage.html">Next Page</a>
</body>
<script>
$(document).ready(function() {
function disablePrev() { window.history.forward() }
window.onload = disablePrev();
window.onpageshow = function(evt) { if (evt.persisted) disableBack() }
});
</script>
</html>以下是newpage的代码。html，
<html>
<body>
Go to back page using web browser back button.
</body>
</html>a