private void GoChatRoom() { string[] roomIds = new string[3] { "1001", "1002", "1003" }; string roomId = Console.ReadLine(); while (true) { _chatSocket.SendRamMessage($"GOROOM {roomId}\r\n"); if (roomIds.Contains(roomId)) { Console.WriteLine("break"); break; } else { roomId = Console.ReadLine(); } } _isGoChatRoom = true; }