Socket自学笔记1

        由于TCP/Ip原理课的试验，这次认真学习了一次Socket编程，比较模式化的东西，这次使用C#先完成老师的基本要求，正好参加的软件大赛也要用上这方面的东西，所以再继续深入学习一下。
        先是做一个server端，安装socket的步骤，进行简单的消息接受和消息回复，虽然网上已经有了现成的代码，我还是敲了遍……
        sever代码：
        

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


namespace server
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                int port = 2000;
                string host = "127.0.0.1";
                IPAddress ip = IPAddress.Parse(host);
                IPEndPoint ipe = new IPEndPoint(ip,port);
                Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                s.Bind(ipe);
                s.Listen(0);
                Console.WriteLine("waite for connect");
                Socket temp = s.Accept();
                string recvStr = "";
                byte[] recvBytes = new byte[1024];
                int bytes;
                bytes = temp.Receive(recvBytes, recvBytes.Length, 0);
                recvStr += Encoding.Unicode.GetString(recvBytes, 0, bytes);
                Console.WriteLine("Get Message {0}", recvStr);
                string sendStr = "Your Message :" + recvStr;
                byte[] bs = Encoding.Unicode.GetBytes(sendStr);
                temp.Send(bs, bs.Length, 0);
                temp.Close();
                s.Close();
            }
            catch (ArgumentNullException e)
            {
                Console.WriteLine("ArgumentNullException :{0}", e);
            }
            catch (SocketException e)
            {
                Console.WriteLine("SocketException:", e);

            }
            Console.WriteLine("Press Enter to Exit");
            Console.ReadLine();


            


        }
    }
}

        client端也类似，为了能显示中文，选择了unicode方式：
        

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


namespace client
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                int port = 2000;
                string host = "127.0.0.1";
                IPAddress ip = IPAddress.Parse(host);
                IPEndPoint ipe = new IPEndPoint(ip, port);
                Socket c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                Console.WriteLine("Connecting");
                c.Connect(ipe);
               
                string sendStr = "某人是个天才！";
                byte[] bs = Encoding.Unicode.GetBytes(sendStr);
                Console.WriteLine("Sending Message");
                c.Send(bs, bs.Length, 0);
                string recvStr = "";
                byte[] recvBytes = new byte[1024];
                int bytes;
                bytes = c.Receive(recvBytes, recvBytes.Length, 0);
                recvStr += Encoding.Unicode.GetString(recvBytes, 0, bytes);
                Console.WriteLine("Client Get Message: {0}", recvStr);
                c.Close();
            }
            catch (ArgumentNullException e)
            {
                Console.WriteLine("ArgumentNullException: {0}", e);

            }
            catch(SocketException e)
            {
                Console.WriteLine("SocketException:{0}",e);
            }
            Console.WriteLine("Press Enter to Exit");
            Console.ReadLine();

            



                

        }
    }
}

        这仅仅是第一步，但基于此可以进一步进行改进，增加更多的功能……