c-sharp-telegram-bot-v22.4.cs

        static TelegramBotClient _TelegramBotClient;
        static CancellationTokenSource cts = new CancellationTokenSource();
        
        public static void InitTelegramBotClient()
        {
            _TelegramBotClient = new TelegramBotClient("1234567890:AAD98dMandhVhEW4jDEu-LTm6fX9MYL9PKU4",httpClient:default,cts.Token); 
            _TelegramBotClient.OnMessage += _TelegramBotClient_OnMessage;
        }
        
        private static Task _TelegramBotClient_OnMessage(Telegram.Bot.Types.Message message, Telegram.Bot.Types.Enums.UpdateType type)
        {
             if (message.Text is not { } text) {
                 Console.WriteLine($"Received a message of type {message.Type}");
                 _TelegramBotClient.SendMessage(message.Chat, $"Echo: Your Message Type is {message.Type}", replyMarkup: new ReplyKeyboardRemove());
             }
             else if (text.StartsWith('/'))
             {

                 Console.WriteLine($"Command:" + message.Text);
                 _TelegramBotClient.SendMessage(message.Chat, $"Echo: Your Command  is {message.Text}", replyMarkup: new ReplyKeyboardRemove());

             }
             else
             {
                 Console.WriteLine($"純文字:" + message.Text);
                 _TelegramBotClient.SendMessage(message.Chat, $"Echo: Your Text  is {message.Text}", replyMarkup: new ReplyKeyboardRemove());


             }

             return Task.FromResult<object>(null);
         }
         
         
        static void Main(string[] args)
        {


            Console.WriteLine("Test Telegram.Bot v22.4.4");
            InitTelegramBotClient();

            //因這是console 所以會這樣寫
            //如果你是 ASP.net 的服務可以寫在 Service End  的時候
            while (Console.ReadKey(true).Key != ConsoleKey.Escape) {
                cts.Cancel(); // stop the bot
            }
        }