How to read the url parameters??

 I want to read the url parameters from my webservice in C# ->
 
1 <%@ WebService Language="C#" Class="Complete" %>
2
3 using System;
4 using System.Collections;
5 using System.Web;
6 using System.Web.UI;
7
8 using System.Web.Services;
9 using System.Web.Script.Services;
10 using System.Web.Services.Protocols;
11
12 [WebService(Namespace = "http://tempuri.org/")]
13 [WebServiceB ...