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using System.Windows.Forms;
using System.Net;
using System.Threading;
using System.Net.Sockets;
namespace QQ
{
public partial class Socketclient : Form
{
public Socketclient（）
{
InitializeComponent（）;
}
private void button1_Click（object sender, EventArgs e）
{
string str = this.textBox1.Text.ToString（）;
BeginSend（str）;
}
private void BeginSend（string str）
{
IPAddress serverIp = IPAddress.Parse（"127.0.0.1"）;
IPEndPoint iep = new IPEndPoint（serverIp,8000）;
byte[] byteMessage;
Socket socket = new Socket（AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp）;
socket.Connect（iep）;
byteMessage = Encoding.ASCII.GetBytes（str）;
socket.Send（byteMessage）;
socket.Shutdown（SocketShutdown.Both）;
socket.Close（）;
}
}
}