1. 網路程式設計 - C# 版
日期 : 2018/12/4

2. 簡單的網路層次圖 TCP : Socket, ServerSocket
UDP : DatagramSocket, DatagramPacket
IP : InetAddress, URL 2
陳鍾誠 /12/4

3. 詳細的網路層次圖 URL Socket ServerSocket DatagramSocket DatagramPacket
InetAddress 3
陳鍾誠 /12/4

4. Socket 程式設計模型
Request 請求
Client
Server
Response 回覆 4
陳鍾誠 /12/4

5. C# Socket Programming IP: Socket (插座) : IPEndPoint TCP socket :
Socket  TCP Client
ServerSocket  TCP Server
UDP Socket :
DatagramSocket  Udp Client , Udp Server
DatagramPacket  Udp packet 5
陳鍾誠 /12/4

6. TCP Socket Programming
Connect()
Receive()
Send()
Close()
Server 同樣是用 Socket 物件
Bind()
Listen()
Accept()
RemoteEndPoint 6
陳鍾誠 /12/4

7. 最簡單的 Client-Server 網路程式
IPEndPoint ipep = new IPEndPoint(IPAddress.Parse(args[0]), 20);
Socket server = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
server.Connect(ipep);
while(true) {
string input = Console.ReadLine();
if (input == "exit")
break;
byte[] data = Encoding.ASCII.GetBytes(input);
server.Send(data); }
Console.WriteLine("Disconnecting from server...");
server.Shutdown(SocketShutdown.Both);
server.Close();
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 20);
Socket newsock = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
newsock.Bind(ipep);
newsock.Listen(10);
while(true) {
Socket client = newsock.Accept();
IPEndPoint clientep = (IPEndPoint) client.RemoteEndPoint;
// create a new thread and then receive message.
TcpListener listener = new TcpListener(client);
Thread thread = new Thread(new ThreadStart(listener.run));
thread.Start(); }
public class TcpListener { …
public void run() {
while (true)
byte[] data = new byte[1024];
int recv = socket.Receive(data);
if (recv == 0) break;
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv)); } 7