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C# 5.0 kurz & gut
book

C# 5.0 kurz & gut

by Joseph Albahari, Ben Albahari, Lars Schulten
March 2013
Intermediate to advanced
224 pages
5h 17m
German
O'Reilly Verlag
Content preview from C# 5.0 kurz & gut

Anonyme Methoden

Anonyme Methoden sind eine C# 2.0-Einrichtung, die im wesentlichen von Lambda-Ausdrücken ersetzt wurde. Eine anonyme Methode ähnelt einem Lambda-Ausdruck, dem implizit typisierte Parameter, die Ausdruckssyntax (anonyme Methoden müssen immer einen Anweisungsblock haben) und die Fähigkeit fehlen, zu einem Ausdrucksbaum kompiliert zu werden.

Um eine anonyme Methode zu schreiben, nutzen Sie das Schlüsselwort delegate, gefolgt von einer (optionalen) Parameterdeklaration und einem Methodenrumpf. So könnten wir zum Beispiel für das Delegate

delegate int Transformer (int i);

eine anonyme Funktion wie folgt schreiben und aufrufen:

Transformer sqr = delegate (int x) {return x * x;};
Console.WriteLine (sqr(3));         // 9

Die erste Zeile ist semantisch ...

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Publisher Resources

ISBN: 9783955611002Purchase book