c# webeocket client访问127.0.0.1的9960端口，怎么写

在C#中，如果你想要使用WebSocket客户端连接到本地127.0.0.1的9960端口，你可以使用`System.Net.WebSockets.ClientWebSocket`类。下面是一个简单的示例代码片段：

using System;
using System.Net.WebSockets;

class Program
{
    static async Task Main(string[] args)
    {
        // 创建WebSocket连接的选项
        var uri = new Uri("ws://127.0.0.1:9960");
        
        // 使用ClientWebSocket创建连接
        using (var socket = new ClientWebSocket())
        {
            try
            {
                await socket.ConnectAsync(uri, CancellationToken.None);

                // 发送数据
                string message = "Hello from C# WebSocket client!";
                var bytes = Encoding.UTF8.GetBytes(message);
                await socket.SendAsync(new ArraySegment<byte>(bytes), WebSocketMessageType.Text, true, CancellationToken.None);

                // 接收数据并处理
                var result = await socket.ReceiveAsync(new ArraySegment<byte>(ArrayPool<byte>.Shared.Rent(1024)), CancellationToken.None);
                if (result.MessageType == WebSocketMessageType.Close)
                    Console.WriteLine($"Connection closed with code {result.CloseStatus} and reason {result.CloseStatusDescription}");
                else
                    Console.WriteLine($"Received message: {Encoding.UTF8.GetString(result.Array, 0, result.Count)}");

                // 关闭连接
                await socket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Closing connection", CancellationToken.None);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error occurred: {ex.Message}");
            }
        }
    }
}

这个程序首先创建一个到指定IP和端口的WebSocket连接，然后发送一条消息并接收响应。请注意，实际运行此代码需要安装`System.Net.WebSockets`命名空间。