上一篇实现了服务器端的sockets编程，下面是客户端的程序，运行效果如下：
c#socket通信实例
开启服务器之后，填上服务器地址与端口，点击即可连接，笔者在两台工控机之间测试正常通信。
服务器端代码：C#Socket套接字使用Tcp协议通信（服务器端）
下面是客户端的源代码，比起服务器端来说，客户端的代码简洁不少。
复制
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;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace client
{
public partial class Form1 : Form
{
public delegate void upadta (String arg);
Socket mysocket;
public Form1 ()
{
InitializeComponent ();
}
private void Form1_Load ( object sender, EventArgs e )
{
}
private void button1_Click ( object sender, EventArgs e )
{
mysocket = new Socket ( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp );
IPAddress ips = IPAddress.Parse ( textBox1.Text );
IPEndPoint ipend = new IPEndPoint ( ips, Convert.ToInt16 ( textBox2.Text ) );
mysocket.Connect ( ipend );
Thread thread = new Thread ( resmessg );
thread.IsBackground = true;
thread.Start ();
}
public void resmessg (object obj)
{
upadta day = new upadta (updataui);
while(true){
byte[] mess = new byte[1024 * 1024];
int length = mysocket.Receive (mess);
String dtr = Encoding.UTF8.GetString (mess,0,length);
Invoke (day,dtr);
}
}
private void button2_Click ( object sender, EventArgs e )
{
byte[] senstr = Encoding.UTF8.GetBytes (textBox3.Text.ToString());
mysocket.Send (senstr);
textBox4.Text += textBox3.Text;
textBox3.Text = "";
}
public void updataui (String arg)
{
textBox4.Text += arg;
}
}
}客户端同样用到了委托，此代码仅供参考。笔者在vs2012net4.5环境中编译通过。下面附上项目代码
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