How to display script variables in asp.net2?

Hi I am using c# as my scripting in asp.net2? How do i display script variables?

<%
string x="";
%>
<%= x%>

This gets and error message where x is not defined.

 

dim x as string

x = ""

 

It works perfectly well

<% string x = "";%>
<%= x %>

 

by the way, one can output concatated strings with the same way just concluding these stingrs to ()

<% string x1 = "1"; string x2 = "2";%>
<%= (string1 & string2) %>

))