html防止退回到上一个页面
<script language="javascript">
//防止页面后退
history.pushState(null, null, document.URL);
window.addEventListener('popstate', function () {
history.pushState(null, null, document.URL);
});
</script>
<script language="javascript">
//防止页面后退
history.pushState(null, null, document.URL);
window.addEventListener('popstate', function () {
history.pushState(null, null, document.URL);
});
</script>