C# 自定义事件不起作用，有人有建议吗？

Question

我目前正在尝试通过编写自己的自定义事件来理解 C# 中的事件。我的目标是在用户向控制台输入内容后触发一个事件。如果字符串等于“--start”，应该会发生一些事情。我目前没有在我的自定义事件的构造函数中到达我的断点。我希望你能帮助我。

这是我的代码：

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine($"Welcome to the BlackJack Console Game!{Environment.NewLine}" );
        Console.WriteLine($"You get 500 Credits. The minimal Bet is 10 and the maximal 50!{Environment.NewLine}");
        Console.WriteLine($"You can check your Creditcount with --credits{Environment.NewLine}");
        Console.WriteLine($"To Start the Game write --start in the command line{Environment.NewLine}");
        string userInput = Console.ReadLine();

        Game game = new Game();
        game.UserInput = userInput;
    }
}

public class Game
{
    public event EventHandler<UserInputEvent> UserWritedInput;

    private string _userInput;

    public string UserInput
    {
        get { return _userInput; }
        set
        {
            _userInput = value;
            OnUserWritedInput();
        }
    }

    public void OnUserWritedInput()
    {
        UserWritedInput?.Invoke(this, new UserInputEvent(_userInput));
    }
}

public class UserInputEvent : EventArgs
{
    private string _userInput;
    public UserInputEvent(string userInput)
    {
        this._userInput = userInput;

        if (_userInput.Equals("--start"))
        {
            Console.WriteLine("game started!");
        }
    }
}

Answer 1

您还没有订阅该活动：

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine($"Welcome to the BlackJack Console Game!{Environment.NewLine}" );
        Console.WriteLine($"You get 500 Credits. The minimal Bet is 10 and the maximal 50!{Environment.NewLine}");
        Console.WriteLine($"You can check your Creditcount with --credits{Environment.NewLine}");
        Console.WriteLine($"To Start the Game write --start in the command line{Environment.NewLine}");
        string userInput = Console.ReadLine();

        Game game = new Game();
        game.UserWritedInput += OnUserWritedInput;
        game.UserInput = userInput;
    }

    private void OnUserWritedInput(object sender, UserInputEvent args)
    {
        if (args.UserInput.Equals("--start"))
        {
            Console.WriteLine("game started!");
        }
    }
}

public class UserInputEvent : EventArgs
{
    public string UserInput {get;}
    public UserInputEvent(string userInput)
    {
         UserInput = userInput;
    }
}

C# 自定义事件不起作用，有人有建议吗？

C# Custom Event not working, does someone have a suggestion?

c#

console

events

delegates