我已经复制了这段代码并出现了警告框但是当我点击“x”时它似乎没有关闭,这是代码:
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" href="css/bootstrap.css">
<script src="js/jquery.js"></script>
<script src="js/bootstrap.js"></script>
</head>
<body>
<div class="container-fluid">
<div class="alert alert-danger">
<a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>The File will be deleted!
</div>
</div>
</body>
</html>