当我第一次单击“保存”按钮时，警报显示良好。但是，此后每次，除非我进行强制刷新，否则警报不会显示。
这是JSFiddle：JSFiddle
$("#success-alert").hide();
$("#saveChange").click(function showAlert() {
$("#success-alert").alert();
$("#success-alert").fadeTo(2000, 500).slideUp(500, function() {
$("#success-alert").alert('close');
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.1.1/js/bootstrap.min.js"></script>
<div class="product-options">
<button id="saveChange" href="javascript:;" class="btn btn-mini">Save</button>
</div>
<div class="alert alert-success" id="success-alert">
<button type="button" class="close" data-dismiss="alert">x</button>
<strong>Success! </strong>
Your changes has saved.
</div>