用C#在一台机器上实现服务器和客户端之间的通信（socket的小实验），哪位高手给我看看怎么编写？

socket_client

---------------------------------------------------------

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

using System.Net.Sockets

using System.Threading

namespace socket_client

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent()

}

IPEndPoint end

Socket s

Thread td

private void button1_Click(object sender, EventArgs e)

{

try

{

int port = Int32.Parse(textBox2.Text.Substring(textBox2.Text.LastIndexOf(":") + 1))

IPAddress ip = IPAddress.Parse(textBox1.Text.Substring(textBox1.Text.LastIndexOf(":") + 1))

end = new IPEndPoint(ip, port)

}

catch

{

MessageBox.Show("输入有误！！")

textBox1.Text = "IP:"

textBox2.Text = "端口:"

return

}

try

{

s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)

s.Connect(end)

label1.Text = "成功联接上服务器 " + textBox1.Text + ":" + textBox2.Text

td = new Thread(new ThreadStart(bb))

td.IsBackground = true

td.Start()

}

catch

{

label1.Text = "联接失败服务器！！ "

}

}

void bb()

{

while (true)

{

byte[] bb = new byte[1024]

int i= s.Receive(bb)//接收数据，返回每次接收的字节总数

string removeMsg = Encoding.Unicode.GetString(bb,0,i)

if (removeMsg == "cmd---exit")//收到的是退出通知

{

richTextBox1.Text = ""

label1.Text = "无连接"

DialogResult re=MessageBox.Show("服务器已经关闭.\n\"确定\"后退出程序,\n\"取消\"继续停留!", "消息提示:", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning)

MessageBox.Show(re.ToString())

if (re == DialogResult.OK)

{

sendExit()//告诉服务器我退出了

Application.Exit()

}

return

}

richTextBox1.AppendText(removeMsg)

richTextBox1.ScrollToCaret()

}

}

private void button2_Click(object sender, EventArgs e)

{

string msg = "客户端说：" + richTextBox2.Text+"\n"

richTextBox1.AppendText(msg)

byte[] by = Encoding.Unicode.GetBytes(msg)

s.Send(by)

richTextBox2.Text = ""

richTextBox2.Focus()

richTextBox1.ScrollToCaret()

}

void sendExit()

{

string msg = "cmd---exit"

byte[] by = Encoding.Unicode.GetBytes(msg)

s.Send(by)

}

}

}

socket_server

-----------------------------------------------------------------

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

using System.Net.Sockets

using System.Threading

namespace socket_server

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent()

}

private void button1_Click(object sender, EventArgs e)

{

label1.Text = "监听端口" + Dns.GetHostByName(Dns.GetHostName()).AddressList[0] + ":" + Int32.Parse(textBox1.Text.Substring(textBox1.Text.LastIndexOf(":") + 1)) + "中......"

Thread td = new Thread(new ThreadStart(aa))

td.Start()

if (button1.Text == "开始监听")

{

button1.Text = "停止监听"

return

}

else

{

sendExit()

ss.Shutdown(SocketShutdown.Both)

s.Close()

td.Abort()

label1.Text = "停止监听！"

richTextBox1.Text = ""

button1.Text = "开始监听"

}

}

void sendExit()

{

string msg = "cmd---exit"

byte[] by = Encoding.Unicode.GetBytes(msg)

ss.Send(by)

}

Socket s

Socket ss

void aa()

{

int port = Int32.Parse(textBox1.Text.Substring(textBox1.Text.LastIndexOf(":") + 1))

IPEndPoint end = new IPEndPoint(Dns.GetHostByName(Dns.GetHostName()).AddressList[0], port)

s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)

s.Bind(end)

s.Listen(5)

ss=s.Accept()

if (ss.Connected)

{

label1.Text = "有客户端联接上端口："+textBox1.Text

while (true)

{

byte[] by = new byte[1024]

int i = ss.Receive(by)

string msg = Encoding.Unicode.GetString(by, 0, i)

if (msg == "cmd---exit")

{

label1.Text = "客户端已经取消连接！"

return

}

richTextBox1.AppendText(msg)

richTextBox1.ScrollToCaret()

}

}

}

private void button2_Click(object sender, EventArgs e)

{

string m = "服务器说：" + richTextBox2.Text + "\n"

richTextBox1.AppendText(m)

byte[] by = Encoding.Unicode.GetBytes(m)

ss.Send(by)

richTextBox2.Text = ""

richTextBox2.Focus()

richTextBox1.ScrollToCaret()

}

private void button3_Click(object sender, EventArgs e)

{

string w="123455"

MessageBox.Show(w.Substring(0))

}

}

}

您好，根据您的描述，可能是IP地址或DNS地址获取有问题。您需要确认一下电脑无线网卡能否正常获取到IP地址，或者您的无线网卡被设置了静态地址。

* 检查IP的方法，依次点击：开始--控制面板--网络和共享中心--无线网络连接--详细信息--ipv4地址，或者点击右下角无线网络连接图标，选择CMCC点击右键，选择状态查看ipv4地址。

* IP地址范围：正常地址段：183.*.*.*；117.*.*.*；错误地址段：169.*.*.*；192.*.*.*；10.*.*.*，等。

* 如果IP地址或DNS地址有问题，请选择“自动获得IP地址”和“自动获得DNS地址”。之后重新连接就应该可以恢复了。

请您了解。

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