public async ETVoid Start()
        {
            this.CancellationTokenSource = new CancellationTokenSource();

            while (true)
            {
                try
                {
                    string line = await Task.Factory.StartNew(() =>
                    {
                        Console.Write($"{this.Mode}> ");
                        return(Console.In.ReadLine());
                    }, this.CancellationTokenSource.Token);

                    line = line.Trim();

                    if (this.Mode != "")
                    {
                        bool isExited = true;
                        switch (this.Mode)
                        {
                        case ConsoleMode.Repl:
                        {
                            ReplComponent replComponent = this.GetComponent <ReplComponent>();
                            if (replComponent == null)
                            {
                                Console.WriteLine($"no command: {line}!");
                                break;
                            }

                            try
                            {
                                isExited = await replComponent.Run(line, this.CancellationTokenSource.Token);
                            }
                            catch (Exception e)
                            {
                                Console.WriteLine(e);
                            }

                            break;
                        }
                        }

                        if (isExited)
                        {
                            this.Mode = "";
                        }

                        continue;
                    }

                    switch (line)
                    {
                    case "reload":
                        try
                        {
                            Game.EventSystem.Add(DllHelper.GetHotfixAssembly());
                        }
                        catch (Exception e)
                        {
                            Console.WriteLine(e);
                        }
                        break;

                    case "repl":
                        try
                        {
                            this.Mode = ConsoleMode.Repl;
                            this.AddComponent <ReplComponent>();
                        }
                        catch (Exception e)
                        {
                            Console.WriteLine(e);
                        }
                        break;

                    default:
                        Console.WriteLine($"no such command: {line}");
                        break;
                    }
                }
                catch (Exception e)
                {
                    Console.WriteLine(e);
                }
            }
        }