net websocket

WebSocket是一种用于在客户端和服务器之间进行双向通信的协议。它提供了一种实时性更高、更高效的方式来传输数据，相比传统的HTTP协议，它可以降低网络延迟并减少网络流量。

在Net框架中，你可以使用System.Net.WebSockets命名空间下的类来实现WebSocket通信。下面是一个简单的示例代码：

using System;
using System.Net.WebSockets;
using System.Threading;
using System.Threading.Tasks;

public class WebSocketClient
{
    public static async Task Connect(string url)
    {
        using (ClientWebSocket client = new ClientWebSocket())
        {
            await client.ConnectAsync(new Uri(url), CancellationToken.None);

            await Task.WhenAll(Receive(client), Send(client));

            await client.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
        }
    }

    private static async Task Receive(ClientWebSocket client)
    {
        byte[] buffer = new byte[1024];
        while (client.State == WebSocketState.Open)
        {
            WebSocketReceiveResult result = await client.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
            if (result.MessageType == WebSocketMessageType.Text)
            {
                string message = System.Text.Encoding.UTF8.GetString(buffer, 0, result.Count);
                Console.WriteLine("Received: " + message);
            }
        }
    }

    private static async Task Send(ClientWebSocket client)
    {
        while (client.State == WebSocketState.Open)
        {
            string message = Console.ReadLine();
            byte[] buffer = System.Text.Encoding.UTF8.GetBytes(message);
            await client.SendAsync(new ArraySegment<byte>(buffer), WebSocketMessageType.Text, true, CancellationToken.None);
        }
    }
}

你可以调用`WebSocketClient.Connect(url)`方法来连接到WebSocket服务器并进行通信。`url`参数应该是WebSocket服务器的地址。