利用socket簡單的實現，客戶端和伺服器之間的通訊。

客戶端：

using UnityEngine;
using System.Collections;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.IO;


public class client : MonoBehaviour {
void Start () {
        ConncetServer();
}

    void ConncetServer()
    {
        IPAddress ipAdr = IPAddress.Parse("10.130.28.9");
        IPEndPoint ipEp=new IPEndPoint(ipAdr,7000);
        Socket clientScoket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
        clientScoket.Connect(ipEp);
        string output="client requeset";
        byte[] concent=Encoding.UTF8.GetBytes(output);
        clientScoket.Send(concent);
        byte[] response=new byte[1024];
        int bytesRead = clientScoket.Receive(response);
        string input = Encoding.UTF8.GetString(response,0,bytesRead);
        print("Client request:"+input);
        clientScoket.Shutdown(SocketShutdown.Both);
        clientScoket.Close();
    }
}

伺服器：

using UnityEngine;
using System.Collections;
using System.Collections;
using System.Net;
using System.IO;
using System.Net.Sockets;
using System.Text;


public class Connet : MonoBehaviour {


// Use this for initialization
void Start () {
        OpenServer();
}
    void OpenServer()
    {
        IPAddress ipAdr = IPAddress.Parse("10.130.28.9");
        IPEndPoint ipEp = new IPEndPoint(ipAdr,7000);
        //creat a socket
        Socket serverScoket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
        //bind the socket
        serverScoket.Bind(ipEp);
        //listen
        serverScoket.Listen(20);
        while(true)
        {
            Socket client = serverScoket.Accept();
            byte[] request=new byte[512];
            //receive
            int bytesRead = client.Receive(request);
            string input = Encoding.UTF8.GetString(request,0,bytesRead);//按照字元編碼得到字串
            print("server request:"+input);
            string output = "server request true";
            byte[] concent = Encoding.UTF8.GetBytes(output);
            client.Send(concent);
            client.Shutdown(SocketShutdown.Both);//關閉接收和傳送
            client.Close();
        }
    }
}