Clear TCPClient Cache in C#

In C#, you can use the Flush method of NetworkStream to clear the buffer. NetworkStream is a property of TcpClient, which can be accessed through the TcpClient.GetStream() method.

Below is an example code demonstrating how to use the Flush method to clear the cache.

using System;
using System.Net.Sockets;

class Program
{
    static void Main(string[] args)
    {
        string serverIP = "127.0.0.1";
        int serverPort = 8080;

        TcpClient client = new TcpClient(serverIP, serverPort);
        NetworkStream stream = client.GetStream();

        // 发送数据
        byte[] buffer = System.Text.Encoding.ASCII.GetBytes("Hello, server!");
        stream.Write(buffer, 0, buffer.Length);
        stream.Flush();

        // 清除缓存
        stream.Flush();

        // 关闭连接
        client.Close();
    }
}

In the example above, a TcpClient object is first created and connected to a specific server IP and port. Then, a NetworkStream object is obtained and used to send data to the server using the Write method. The Flush method is then called to clear the buffer. Finally, the connection is closed.

Please note that after using the Write method of NetworkStream to write data, the data will not be immediately sent to the server unless the Flush method is called to clear the cache. Therefore, if immediate data transmission is required, the Flush method can be called after writing the data.