dongwushibie

private void Connect_Click(object sender, System.EventArgs e)        {            //将光标置为等待状态            Cursor cr = Cursor.Current;            Cursor.Current = Cursors.WaitCursor;            String a ,b,c;              //用110端口新建POP3服务器连接            Server = new TcpClient(PopServer.Text, 110);            Status.Items.Clear();             try            {                //初始化                NetStrm = Server.GetStream();                RdStrm = new StreamReader(Server.GetStream());                Status.Items.Add(RdStrm.ReadLine());                 //登录服务器过程                Data = "USER " Username.Text CRLF;                szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());                NetStrm.Write(szData, 0, szData.Length);                Status.Items.Add(RdStrm.ReadLine());                 Data = "PASS " Password.Text CRLF;                szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());                NetStrm.Write(szData, 0, szData.Length);                Status.Items.Add(RdStrm.ReadLine());                 //向服务器发送STAT命令，从而取得邮箱的相关信息：邮件数量和大小                Data = "STAT" CRLF;                szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());                NetStrm.Write(szData, 0, szData.Length);                //Status.Items.Add(RdStrm.ReadLine());                 //改变按钮的状态                Connect.Enabled = false;                Disconnect.Enabled = true;                Retrieve.Enabled = true;                 //将光标置回原来状态                Cursor.Current = cr;             }            catch (InvalidOperationException err)            {                Status.Items.Add("Error: " err.ToString());            }        }

LDAP初级学习教程，手把手教你怎么学习LDAP,真是入门级的好教材！-LDAP primary learning curriculum, how do you手把手教learning LDAP, is a good entry-level teaching materials!

一个小型的DDE服务器，可以拿来练手和学习(A small DDE server that can be used for hands-on training and learning)

ASP网页，里面有详细的说明，很有用的，希望大家喜欢-ASP page, which has detailed instructions, very useful, I hope everyone likes

小小聊天示例 闪存 javascript 等 它是很好。 谢谢你。

一个网络后门程序。演示了通过Http通道的功能穿透安全级别非常高的防火墙，甚至硬件防火墙。()

一个很不错的网络聊天程序,分为客户端和服务段,总体的功能很不错的(a very good network chat procedures, and is divided into client services, the overall function of very good)

UDP异步编程

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计算机网络讲义谢西仁的，非常出名第五版计算机网络讲义谢西仁的，非常出名第五版(West Yan Xie computer network notes, very well-known computer network notes the fifth edition of the West Yan Xie, very famous Fifth Edition)