C# client talking to python server with double converting to bytes

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Net.Sockets;

using System.Net;

namespace Client

{

    class Program

    {

        static Socket ClientSocket;

        static void Main(string[] args)

        {

            String IP = "127.0.0.1";

            int port = 9999;

            IPAddress ip = IPAddress.Parse(IP);  //将IP地址字符串转换成IPAddress实例

            ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//使用指定的地址簇协议、套接字类型和通信协议

            IPEndPoint endPoint = new IPEndPoint(ip, port); // 用指定的ip和端口号初始化IPEndPoint实例

            ClientSocket.Connect(endPoint);  //与远程主机建立连接

            Console.WriteLine("开始发送消息");

            byte[] message = Encoding.ASCII.GetBytes("Connect the Server");  //通信时实际发送的是字节数组，所以要将发送消息转换字节

            double a = 0.0000008900056;

            byte[] wordsToSent = BitConverter.GetBytes(a);

            ClientSocket.Send(wordsToSent);

            Console.WriteLine("发送消息为:" + Encoding.ASCII.GetString(wordsToSent));

            byte[] receive = new byte[1024];

            int length = ClientSocket.Receive(receive);  // length 接收字节数组长度

            Console.WriteLine("接收消息为：" + Encoding.ASCII.GetString(receive));

            ClientSocket.Close();  //关闭连接

            Console.Read();

        }

    }

}