c# TCP/IP协议利用Socket Client通信(只含客服端Demo)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;


        /// <summary>
        /// Socket客户端Demo
        /// </summary>
        /// <param name="sendStr">发送数据和指令</param>
        /// <returns>接收数据和指令</returns>
        public string SetSocket(string sendStr)
        {
            string recStr = "";
            Task<string> yourTask = new Task<string>(() =>
            {
                try
                {
                    IPEndPoint ipe = new IPEndPoint(IPAddress.Parse(IPAddres), EndPoints);//IPAddres:IP地址;EndPoints:端口号
                    Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    clientSocket.Connect(ipe);

                    //send message
                    byte[] sendBytes = Encoding.ASCII.GetBytes(sendStr);
                    clientSocket.Send(sendBytes);

                    //receive message

                    byte[] recBytes = new byte[4096];
                    int bytes = clientSocket.Receive(recBytes, recBytes.Length, 0);
                    recStr += Encoding.ASCII.GetString(recBytes, 0, bytes);
                    clientSocket.Close();
                    return recStr;
                }
                catch (Exception ex)
                {
                    return ex.Message;
                }
            });
            yourTask.Start();
            return yourTask.Result;
        }