C#学习——简单socket、多线程

1、C#socket

using System.Net;

using System.Net.Sockets;

using System.Threading;

public string Connect_Server(string IP, string Port, out int re)

{

IPAddress ip = IPAddress.Parse(IP);

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

try

{

clientSocket.Connect(new IPEndPoint(ip, Int32.Parse(Port)));

re = 0;

return "Connect Success";

}

catch

{

re = 1;

return "Connect Fail";

}

}

public string Receive()

{

byte[] result = new byte[1024];

clientSocket.Receive(result);

return System.Text.Encoding.Default.GetString(result);

}

public void SendData(string data)

{

clientSocket.Send(Encoding.ASCII.GetBytes(data));

}

2、多线程

using System.Threading;

Control.CheckForIllegalCrossThreadCalls = false; //c#控件是非线程安全的，多线程设置控件属性的时候，调试状态会报错InvalidOperationException，添加此语句可以忽略此错误

//线程启动

Thread thread_rec thread_rec = new Thread(new ThreadStart(ThreadFunc));

thread_rec.Start();

//多线程中启动窗体

private void ThreadFunc()

{

MethodInvoker mi = new MethodInvoker(this.Wait_Receive);

this.BeginInvoke(mi);

}

public void Wait_Receive()

{

while (true)

{

//

}

Login login = new Login(re_socket);

login.Show();

this.Hide();

}

3.定时器

System.Threading.Timer timer = new System.Threading.Timer(new TimerCallback(Tick), null, 3000, 3000);

void Tick(object data)

{

if (!receive_sig)

{

label_connectInfo.Text = "receive string timeout";

button_connect.Enabled = true;

receive_sig = true;

Application.DoEvents();

thread_rec.Interrupt();

}

timer.Dispose();

}