socket 通讯实例源码

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
namespace client
{
    public partial class Form1 : Form
    {
        

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try 
               {
                   int portNum = Convert.ToInt32(this.textBox2.Text); //服务器端口，可以随意修改 
                   string hostName = this.textBox1.Text; //服务器地址，127.0.0.1指本机 
                   this.richTextBox1.AppendText("请求连接"   hostName   ":"   portNum.ToString()   "\r");  
                  
                  TcpClient client = new TcpClient(hostName, portNum); 
                  NetworkStream ns = client.GetStream(); 
                  byte[] bytes = new byte[1024]; 
                  int bytesRead = ns.Read(bytes, 0, bytes.Length);
                  this.richTextBox1.AppendText(Encoding.UTF8.GetString(bytes, 0, bytesRead)   "\r");
                  //Rdstrm = new StreamReader(邮件服务流对象, System.Text.Encoding.GetEncoding("gb2312"));
                
                  client.Close(); 
                 
                } 
             catch (Exception ee) 
                { 
                  
                  MessageBox.Show(ee.ToString());

                  this.richTextBox1.AppendText(ee.ToString()   "\r");
                } 

        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.richTextBox1.Clear();
        }

       
    }
}