ICQ/即时通讯

开发平台：

C#

user.cs：源码内容

							using System;
using System.Windows .Forms ;
using System.Net.Sockets;
using System.IO;
using System.Threading ;
namespace qq
{
	/// <summary>
	/// user 的摘要说明。
	/// </summary>
	public class user
	{
		
		System.Net .Sockets .TcpClient  client;
		System.Net.Sockets .NetworkStream socketstream;
		Form1 server;
		BinaryWriter writer;
		BinaryReader reader;
		Thread outputThread;
		public int isline;
		
		public user(Form1 servervalue)
		{
			//
			// TODO: 在此处添加构造函数逻辑
			//
			
			try
			{
				server=servervalue;
				isline=1;
				
				client=new TcpClient (this.server.ip,5000);
				
				socketstream=client.GetStream();
				writer=new BinaryWriter (socketstream);
				reader=new BinaryReader(socketstream);
				this.outputThread =new Thread (new ThreadStart (run));
				outputThread.Start ();
			}
			catch(Exception ee)
			{
			  MessageBox.Show(ee.ToString());
				isline=0;
			}
		}
		public void run()
		{
			while(true)
			{
				string s1=reader.ReadString();
				string s2=reader.ReadString();
				string s3=reader.ReadString();
				foreach(UserControl1 dt in server.userlist)
				{
					if(dt.uid==s1)
					{
						
						if(s3.Trim()=="上线通知")
						{
							
							dt.setm(0);
							dt.timer.Start();
						}
						else if(s3.Trim()=="下线通知")
						{
							dt.setm(2);
						}
						else if(s3.Trim()=="发送文件")
						{
							dt.setup();
						}
						else
						{
							dt.tempxiao+=(s3+"n");
							dt.xiaoxi=true;
							dt.timer.Start();
						}
					
						break;
					}
				}
					
			}
			
		}
		public void close()
		{
			writer.Close();
			reader.Close();
			this.socketstream.Close();
			this.client.Close();
		}
		public void startset()
		{
             
		writer.Write(server.userid);
			
		}
		public void sendmessage(string ab)
		{
			writer.Write(ab);
		}
		
	}
}

						