where we use <%@ %> <%= %> <%# %> etc.
what else asp tags can be added in asp.net web pages?
<%%> is short hand for:
Anyting inside the <% and %> is server side code.
The other variants are also shortcuts:
<%@%> is a page directrive<%=%> is short for Response.Write<%:%> is short for Response.Write, adding html encoding (introduced with .NET 4.0)<%#%> is a binding expressionThis page is a good reference to all these.