Leer Uitdaging: Enumerator | Structs & Enumerators

Vul de lege plekken in om de enum-definitie te voltooien. Lees de code en bepaal wat de naam van de enum is, en welke leden deze moet bevatten.

index.cs


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using System;

class Program
{
    // Fill in the blanks below this line
    ___ ___
    {
        ___
    }

    static void Main(string[] args)
    {
        Potion potion = Potion.Invisibility;

        switch (potion)
        {
            case Potion.Invisibility:
                Console.WriteLine("You drink the Invisibility potion and vanish from sight!");
                break;
            case Potion.Strength:
                Console.WriteLine("You drink the Strength potion and feel a surge of power!");
                break;
            case Potion.Healing:
                Console.WriteLine("You drink the Healing potion and your wounds magically mend.");
                break;
            case Potion.FireResistance:
                Console.WriteLine("You drink the Fire Resistance potion and become impervious to flames.");
                break;
            case Potion.Teleportation:
                Console.WriteLine("You drink the Teleportation potion and find yourself in a new location!");
                break;
            default:
                Console.WriteLine("Invalid potion type!");
                break;
        }
    }
}

Bij het benaderen van een enum-constante gebruiken we de syntaxis enumName.constName, waarbij enumName de naam van de enumerator is.
De enum moet vijf elementen bevatten. Kijk in de cases van de switch-instructie om te achterhalen welke constanten worden gebruikt. Eén daarvan is Invisibility.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637383940
            
using System;

class Program
{
    enum Potion
    {
        Invisibility,
        Strength,
        Healing,
        FireResistance,
        Teleportation
    }

    static void Main(string[] args)
    {
        Potion potion = Potion.Invisibility;

        switch (potion)
        {
            case Potion.Invisibility:
                Console.WriteLine("You drink the Invisibility potion and vanish from sight!");
                break;
            case Potion.Strength:
                Console.WriteLine("You drink the Strength potion and feel a surge of power!");
                break;
            case Potion.Healing:
                Console.WriteLine("You drink the Healing potion and your wounds magically mend.");
                break;
            case Potion.FireResistance:
                Console.WriteLine("You drink the Fire Resistance potion and become impervious to flames.");
                break;
            case Potion.Teleportation:
                Console.WriteLine("You drink the Teleportation potion and find yourself in a new location!");
                break;
            default:
                Console.WriteLine("Invalid potion type!");
                break;
        }
    }
}

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Vul de lege plekken in om de enum-definitie te voltooien. Lees de code en bepaal wat de naam van de enum is, en welke leden deze moet bevatten.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637
            
using System;

class Program
{
    // Fill in the blanks below this line
    ___ ___
    {
        ___
    }

    static void Main(string[] args)
    {
        Potion potion = Potion.Invisibility;

        switch (potion)
        {
            case Potion.Invisibility:
                Console.WriteLine("You drink the Invisibility potion and vanish from sight!");
                break;
            case Potion.Strength:
                Console.WriteLine("You drink the Strength potion and feel a surge of power!");
                break;
            case Potion.Healing:
                Console.WriteLine("You drink the Healing potion and your wounds magically mend.");
                break;
            case Potion.FireResistance:
                Console.WriteLine("You drink the Fire Resistance potion and become impervious to flames.");
                break;
            case Potion.Teleportation:
                Console.WriteLine("You drink the Teleportation potion and find yourself in a new location!");
                break;
            default:
                Console.WriteLine("Invalid potion type!");
                break;
        }
    }
}

Bij het benaderen van een enum-constante gebruiken we de syntaxis enumName.constName, waarbij enumName de naam van de enumerator is.
De enum moet vijf elementen bevatten. Kijk in de cases van de switch-instructie om te achterhalen welke constanten worden gebruikt. Eén daarvan is Invisibility.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637383940
            
using System;

class Program
{
    enum Potion
    {
        Invisibility,
        Strength,
        Healing,
        FireResistance,
        Teleportation
    }

    static void Main(string[] args)
    {
        Potion potion = Potion.Invisibility;

        switch (potion)
        {
            case Potion.Invisibility:
                Console.WriteLine("You drink the Invisibility potion and vanish from sight!");
                break;
            case Potion.Strength:
                Console.WriteLine("You drink the Strength potion and feel a surge of power!");
                break;
            case Potion.Healing:
                Console.WriteLine("You drink the Healing potion and your wounds magically mend.");
                break;
            case Potion.FireResistance:
                Console.WriteLine("You drink the Fire Resistance potion and become impervious to flames.");
                break;
            case Potion.Teleportation:
                Console.WriteLine("You drink the Teleportation potion and find yourself in a new location!");
                break;
            default:
                Console.WriteLine("Invalid potion type!");
                break;
        }
    }
}

Was alles duidelijk?

Bedankt voor je feedback!

Sectie 2. Hoofdstuk 11