如何看待 Unity 與 Xamarin 均僅支持 C# 而不支持 VB.NET？

public class GetSocket
{
private static Socket ConnectSocket(string server, int port)
{
Socket s = null;
IPHostEntry hostEntry = null;

// Get host related information.
hostEntry = Dns.GetHostEntry(server);

// Loop through the AddressList to obtain the supported AddressFamily. This is to avoid
// an exception that occurs when the host IP Address is not compatible with the address family
// (typical in the IPv6 case).
foreach(IPAddress address in hostEntry.AddressList)
{
IPEndPoint ipe = new IPEndPoint(address, port);
Socket tempSocket =
new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

tempSocket.Connect(ipe);

if(tempSocket.Connected)
{
s = tempSocket;
break;
}
else
{
continue;
}
}
return s;
}

// This method requests the home page content for the specified server.
private static string SocketSendReceive(string server, int port)
{
string request = "GET / HTTP/1.1
Host: " + server +
"
Connection: Close

";
Byte[] bytesSent = Encoding.ASCII.GetBytes(request);
Byte[] bytesReceived = new Byte[256];

// Create a socket connection with the specified server and port.
Socket s = ConnectSocket(server, port);

if (s == null)
return ("Connection failed");

// Send request to the server.
s.Send(bytesSent, bytesSent.Length, 0);

// Receive the server home page content.
int bytes = 0;
string page = "Default HTML page on " + server + ":
";

// The following will block until te page is transmitted.
do {
bytes = s.Receive(bytesReceived, bytesReceived.Length, 0);
page = page + Encoding.ASCII.GetString(bytesReceived, 0, bytes);
}
while (bytes &> 0);

return page;
}

public static void Main(string[] args)
{
string host;
int port = 80;

if (args.Length == 0)
// If no server name is passed as argument to this program,
// use the current host name as the default.
host = Dns.GetHostName();
else
host = args[0];

Public Class GetSocket

Private Shared Function ConnectSocket(server As String, port As Integer) As Socket
Dim s As Socket = Nothing
Dim hostEntry As IPHostEntry = Nothing

" Get host related information.
hostEntry = Dns.GetHostEntry(server)

" Loop through the AddressList to obtain the supported AddressFamily. This is to avoid
" an exception that occurs when the host host IP Address is not compatible with the address family
" (typical in the IPv6 case).
Dim address As IPAddress

For Each address In hostEntry.AddressList
Dim endPoint As New IPEndPoint(address, port)
Dim tempSocket As New Socket(endPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp)

tempSocket.Connect(endPoint)

If tempSocket.Connected Then
s = tempSocket
Exit For
End If

Next address

Return s
End Function

" This method requests the home page content for the specified server.

Private Shared Function SocketSendReceive(server As String, port As Integer) As String
"Set up variables and String to write to the server.
Dim ascii As Encoding = Encoding.ASCII
Dim request As String = "GET / HTTP/1.1" + ControlChars.Cr + ControlChars.Lf + "Host: " + server + ControlChars.Cr + ControlChars.Lf + "Connection: Close" + ControlChars.Cr + ControlChars.Lf + ControlChars.Cr + ControlChars.Lf
Dim bytesSent As [Byte]() = ascii.GetBytes(request)
Dim bytesReceived(255) As [Byte]

" Create a socket connection with the specified server and port.
Dim s As Socket = ConnectSocket(server, port)

If s Is Nothing Then
Return "Connection failed"
End If
" Send request to the server.
s.Send(bytesSent, bytesSent.Length, 0)

" Receive the server home page content.
Dim bytes As Int32

" Read the first 256 bytes.
Dim page as [String] = "Default HTML page on " + server + ":" + ControlChars.Cr + ControlChars.Lf

" The following will block until the page is transmitted.
Do
bytes = s.Receive(bytesReceived, bytesReceived.Length, 0)
page = page + Encoding.ASCII.GetString(bytesReceived, 0, bytes)
Loop While bytes &> 0

Return page
End Function

"Entry point which delegates to C-style main Private Function
Public Overloads Shared Sub Main()
Main(System.Environment.GetCommandLineArgs())
End Sub

Overloads Private Shared Sub Main(args() As String)
Dim host As String
Dim port As Integer = 80

If args.Length = 1 Then
" If no server name is passed as argument to this program,
" use the current host name as default.
host = Dns.GetHostName()
Else
host = args(1)
End If

Dim result As String = SocketSendReceive(host, port)