How many forms of include are there in JSP？ What's the difference？

What are include in JSP? What's the difference?

1. What are include in JSP

(1) < %@include file="" % >

(2) < jsp:include page="" flush="true"/ >

2. The difference between the two

(1) The former is an indicator element and the latter is an action element

(2) The former composes a page, while the latter composes a file and is converted to Servlet by the JSP container