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gaofen100
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c# 下 socket 客户端 编程

 
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using System.IO;
using System.Net.Sockets;
using System.Net;

private void button4_Click(object sender, EventArgs e)
{
s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

IPAddress serverIP = IPAddress.Parse("192.168.1.107");  //服务器IP

try
{

IPEndPoint iep=new IPEndPoint(serverIP,9100);


s.Connect(iep);            //连接服务器,端口号用13

}

catch (Exception ex)
{

MessageBox.Show(ex.Message);

}

try
{

ns = new NetworkStream(s);           //实例化网络流

sr = new StreamReader(ns);           //实例化流读取对象

sw = new StreamWriter(ns);           //实例化写入流对象

sw.WriteLine(textBox1.Text);          //将textBox1.Text的数据写入流

sw.Flush();                    //清理缓冲区

listBox1.Items.Add(sr.ReadLine());        //将从流中读取的数据写入lbInfo

}

catch (Exception ex)
{

MessageBox.Show(ex.Message);          //捕获异常

}

}

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