asp.net(c#) 制作注册码程序

1、定义CS类 using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Configuration;
using Hasher;
/**//// <summary>
/// cs 的摘要说明
/// </summary>
///
namespace cs
...{
    public class cs
    ...{
    //判断序列号
        public bool  css()
        //m为配置文件值
        //x为序列号值
        //css进行比较该注册码是否正确
        ...{
            Hasher.Hasher hash = new Hasher.Hasher();
            string xulie = hash.Sern();
            string m = ConfigurationManager.AppSettings.Get("message").ToString();
          
                if (m == xulie)
            ...{
                return true;
            }
            else
            ...{
                return false;
            }
  &