C#简单聊天程序

假如有服务器端程序,ChatServer和客户端程序ChatClient.实现客户端向服务器端发送信息的简单功能.
运行步骤,
1.先是服务器端start listen,
2.然后客户端connect.
3.客户端发送消息
 
只要服务器端start listen了,然后客户端也connect了.这样建立起连接后.接受发送信息就方便了,只要用writer,reader去操作NetworkStream
 
服务器ChatServer
创建一个WinForm页面
引用命名空间:
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;
 
public class ChatServer
{
private int port = 54321; //端口号
private IPAddress ip = IPAddress.Parse("10.20.30.40"); //ip地址
private TcpListener tcpListener= null;
private TcpClient tcpClient = null;
 
private NetworkStream networkStream = null;
private BinaryReader reader;
//private BinaryWriter writer;
private string getInfo = string.empty;
 
//开始监听
private void btnStartListen_Click(object sender, EventArgs e)
{
     tcpListener= new TcpListener( ip , port);
     tcpListener.Start();  //开始监听
 
     Thread acceptClientMsgThread= new Thread(AcceptClientMsg); //运行一个线程去处理客户端发来的信息
     acceptClientMsgThread.Start();
}
 
//处理客户端发来的信息
private void AcceptClientMsg()
 {
    tcpClient = tcpListener.AcceptTcpClient();
    if( tcpClient != null)
   {
       networkStream = tcpClient.GetStream();
       reader = new BinaryReader( networkStream);
       while (true){
          getInfo += reader.ReadString();   //读取客户端发来的信息
       }
   }
}
 
//假如还要显示信息的话,可以整个显示按钮(当然最好的办法是用些线程)
//然后点击button后让信息显示出来txtShowClientMsg.Text =  getInfo;
 
//如果服务器端想再给客户端发信息,就可以整个发送按钮.然后添加如下代码
//string sendMsg  = txtSendMsge.Text;
//writer = new BinaryWriter( networkStream);
//writer.write( sendMsg);
 
}
 
客户端ChatClient
 
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;
public class ChatClient
{
 
 private int port = 54321;
private IPAddress ip = IPAddress.Parse("10.20.30.40");
private TcpClient tcpClient = null;
private NetworkStream networkStream = null;
 
//private BinaryReader reader;
private BinaryWriter writer;
 
//连接server
private void btnStartConnect_Click(object sender, EventArgs e)
{
  tcpClient = new TcpClient();
  tcpClient.Connect( ip, port);
  networkStream = tcpClient.GetStream();
}
 
//发送信息
private void btnStartConnect_Click(object sender, EventArgs e)
{
  string sendMsg = txtSendMsg.Text;
  writer = new BinaryWriter( networkStream);
  writer.Write( sendMsg);  //发送信息
}
 
//如果还要接受server的消息的话.
//reader = new BinaryReader( networkStream);
//string getInfo = reader.ReadString();
}

补充：软件开发 , C# ,