C# websocket客户端

以下是一个C# WebSocket客户端的示例代码：

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

public class WebSocketClient
{
    private ClientWebSocket clientWebSocket;

    public async Task Connect(string url)
    {
        clientWebSocket = new ClientWebSocket();
        await clientWebSocket.ConnectAsync(new Uri(url), CancellationToken.None);
        Console.WriteLine("连接成功");
        await Receive();
    }

    public async Task Send(string message)
    {
        if (clientWebSocket.State == WebSocketState.Open)
        {
            var buffer = new ArraySegment<byte>(System.Text.Encoding.UTF8.GetBytes(message));
            await clientWebSocket.SendAsync(buffer, WebSocketMessageType.Text, true, CancellationToken.None);
        }
    }

    private async Task Receive()
    {
        var buffer = new byte[1024];
        while (clientWebSocket.State == WebSocketState.Open)
        {
            var result = await clientWebSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
            if (result.MessageType == WebSocketMessageType.Text)
            {
                var receivedMessage = System.Text.Encoding.UTF8.GetString(buffer, 0, result.Count);
                Console.WriteLine("接收到消息：" + receivedMessage);
            }
        }
    }
}

使用示例：

WebSocketClient myWSClient = new WebSocketClient();
await myWSClient.Connect("ws://127.0.0.1:7789/ws");
await myWSClient.Send("Hello, server!");

请注意，以上示例代码仅为演示目的，实际使用时可能需要根据具体情况进行适当修改。