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   源码介绍

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C#实现网络通信

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ClientBySocket
{
    public partial class ClientForm : Form
    {
        SocketClientManager _scm = null;
        string ip = "127.0.0.1";
        int port = 1113;

        public ClientForm()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            InitSocket();
        }

        public void OnReceiveMsg()
        {
            byte[] buffer = _scm.socketInfo.buffer;
            string msg = Encoding.ASCII.GetString(buffer).Replace("\0", "");
            if (string.Empty.Equals(msg)) return;
            if (txtMsg.InvokeRequired)
            {
                this.Invoke(new Action(() => {
                    txtMsg.Text  = AppendReceiveMsg(msg);
                }));
            }
            else
            {
                txtMsg.Text  = AppendReceiveMsg(msg);
            }
        }

        public void OnConnected()
        {
            if (txtMsg.InvokeRequired)
            {
                this.Invoke(new Action(() => {
                    txtMsg.Text  = GetDateNow()   "  "   "连接服务器"   ip   " : "   port   "成功\r\n";
                    string ipClient = _scm._socket.LocalEndPoint.ToString().Split(':')[0];
                    string posrClient = _scm._socket.LocalEndPoint.ToString().Split(':')[1];
                    lblClientIps.Text = ipClient;
                    lblClientPorts.Text = posrClient;
                    lblRemoteIps.Text = ip;
                    lblRemotePorts.Text = port.ToString();
                    lblStatuss.Text = "正常";
                }));
            }
            else
            {
                txtMsg.Text  = GetDateNow()   "  "   "连接服务器"   ip   " : "   port   "成功\r\n";
            }
        }

        public void OnFaildConnect()
        {
            if (txtMsg.InvokeRequired)
            {
                this.Invoke(new Action(() =>
                {
                    txtMsg.Text  = GetDateNow()   "  "   "连接服务器"   ip   " : "   port   " 失败\r\n";
                    lblStatuss.Text = "连接失败";
                }));
            }
            else
            {
                txtMsg.Text  = GetDateNow()   "  "   "连接服务器"   ip   " : "   port   " 成功\r\n";
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            _scm.SendMsg(txtSend.Text);
            txtMsg.Text  = AppendSendMsg(txtSend.Text);
            txtSend.Text = "";
        }

        public string AppendSendMsg(string msg)
        {
            return GetDateNow()   "  "   "[发送]  "   msg   "\r\n";
        }

        public string AppendReceiveMsg(string msg)
        {
            return GetDateNow()   "  "   "[接收]  "   msg   "\r\n";
        }

        public string GetDateNow()
        {
            return DateTime.Now.ToString("HH:mm:ss");
        }

        private void InitSocket()
        {
            _scm = new SocketClientManager(ip, port);
            _scm.OnReceiveMsg  = OnReceiveMsg;
            _scm.OnConnected  = OnConnected;
            _scm.OnFaildConnect  = OnFaildConnect;
            _scm.Start();
        }

        private void btnConnected_Click(object sender, EventArgs e)
        {
            InitSocket();
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            if (!_scm._socket.Connected) return;
            _scm._isConnected = false;
            _scm.SendMsg("\0\0\0faild");
            _scm._socket.Shutdown(System.Net.Sockets.SocketShutdown.Both);
            _scm._socket.Close();
            lblClientIps.Text = "";
            lblClientPorts.Text = "";
            lblRemoteIps.Text = "";
            lblRemotePorts.Text = "";
            lblStatuss.Text = "未连接";
            txtMsg.Text  = "连接已经断开\r\n";
        }
    }
}