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DE CSharp Keyword protected
Codex edited this page Oct 11, 2026
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2 revisions
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Handbuch C# · Praktischer Leitfaden
Ermöglicht den Zugriff auf die Klasse selbst und ihre Nachkommen. Die Regeln für den Zugriff auf Instanzen hängen von der Art der Verknüpfung ab.
Speichern Sie dieses Beispiel separat als Example.cs. Führen Sie es unabhängig von den anderen Beispielen dieser Seite aus.
Example.cs:
// PROJECT-EXAMPLE
System.Console.WriteLine(new Child().Read());
class Parent { protected int Count = 3; }
class Child : Parent { public int Read() => Count; }Ergebnis:
3
protected Type Member { get; }using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
public static class Program
{
public static async Task Main(string[] args)
{
Entity entity = new Player("Archer");
Console.WriteLine(entity.Describe());
Console.WriteLine(entity.Code);
}
}
public interface ILabel { string Label { get; } }
public abstract class Entity : ILabel
{
private readonly string name;
protected Entity(string name) { this.name = name; }
protected string Name => name;
internal int Code { get; set; } = 7;
public virtual string Label => Name;
public abstract string Describe();
}
public sealed class Player : Entity
{
public Player(string name) : base(name) { }
public override string Label => "Player: " + base.Label;
public override string Describe() => Label;
}using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
public static class Program
{
public static async Task Main(string[] args)
{
NamedCounter value = new();
Console.WriteLine(value.Describe());
Counter parent = value;
Console.WriteLine(parent.Describe());
}
}
public interface ICounter { int Count { get; } }
public class Counter : ICounter
{
private int count;
public Counter() : this(1) { }
public Counter(int count) { this.count = count; }
public int Count => count;
protected internal virtual string Format() => count.ToString();
public string Describe() => Format();
}
public sealed class NamedCounter : Counter
{
public NamedCounter() : base(4) { }
public new string Describe() => "Named: " + base.Describe();
protected internal override string Format() => "Count=" + Count;
}Offizielle Quelle: Microsoft Learn.
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