我完全按照教程如何创建bootstrap datepicker，但我仍然无法完成工作。请帮我解决问题。谢谢
<html>
<head>
<link rel="stylesheet" href="../datepicker/css/datepicker.css">
<link rel="stylesheet" href="../bootstrap/css/bootstrap.css">
<script src="../datepicker/js/bootstrap-datepicker.js"></script>
<script src="../datepicker/js/main.js"></script>
<script>
$(function () {
$('.datepicker').datepicker();
});
</script>
</head>
<body>
<div class="well">
Date of Birth : <input class="datepicker" type="text" name="date">
</div>
</body>
</html>