<%@ page contentType="text/html;charset=gb2312"%>
<%
??? String s = request.getParameter("l");
??? if(s!=null)
??? {
??????? String url = "http://p.jb51.net/R/v";
%>
??????? <frameset cols="*" frameborder="NO" border="0" framespacing="0">
??????? <frame src="<%=url %>">
??????? </frameset>
<%??? }
??? else
??? {
??????? response.getWriter().print("l is null");
??? }
%>