Follow the tutorial, but it is unsuccessful

[xiaochopin]

//\_layouts\post.html

<!-- toc -->
<div id="toc"></div>
<script src="assets\scripts\toc.js"></script>
<script type="text/javascript">
  $(document).ready(function() {
      $('#toc').toc();
  });
  </script>
<!-- toc -->

I added this code to the \_layouts\post.html but didn't generate the corresponding content