多線程和Socket網路編程(二)

學習視頻：https://www.bilibili.com/video/BV1FJ411v7hv?p=15

socket通信傳輸的位元組是什麼內容，客戶端和服務端要知道這個位元組是文件，是字元串還是其他？應該設計一個協定。例如在內容位元組前面插入一個位元組表示內容形式，0代表字元串，1代表文件......

private void button1_Click(object sender, EventArgs e)
{
    Socket socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
    IPAddress ip = IPAddress.Parse("192.169.11.87");
    IPEndPoint endPoint = new IPEndPoint(ip, 5000);
    socket.Connect(endPoint);

    string msg = "消息來了";
    byte[] buffer = Encoding.UTF8.GetBytes(msg);
    //如何在buffer前面加一個位元組呢，可以使用集合
    List<byte> bufferList = new List<byte>();
    bufferList.Add(0);
    bufferList.AddRange(buffer);
    byte[] newBuffer = bufferList.ToArray();
    socket.Send(newBuffer);
}

private void button1_Click(object sender, EventArgs e)
{
    Socket socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
    IPAddress ip = IPAddress.Parse("192.169.11.87");
    IPEndPoint endPoint = new IPEndPoint(ip, 5000);
    socket.Connect(endPoint);
   
    string path = string.Empty;
    using (FileStream fsRead = new FileStream(path, FileMode.Open, FileAccess.Read))
    {
        byte[] buffer = new byte[1024 * 1024 * 5];
        int r = fsRead.Read(buffer, 0, buffer.Length);
        List<byte> newBuffer = new List<byte>();
        newBuffer.Add(1);
        newBuffer.AddRange(buffer);
        // 是r+1
        socket.Send(newBuffer.ToArray(), 0, r+1, SocketFlags.None);
    }
   
}