<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>test.jsp</title>
</head>
<body>
<%
String s = null;
if ((s = request.getParameter("num")) != null) {
int i = Integer.parseInt(s);
out.println((i * i) + "<br />");
}
%>
<%
for (int i = 1; i < 10; i++) {
%>
<a href="test.jsp?num=<%=i%>"><%=i%></a>
<%
}
%>
</body>
</html>