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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();
        }
    }
}

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