{"id":15695,"date":"2024-06-03T09:57:37","date_gmt":"2024-06-03T09:57:37","guid":{"rendered":"https:\/\/stagingcopy.comitas.com\/dir\/?p=15695"},"modified":"2024-12-11T11:30:54","modified_gmt":"2024-12-11T11:30:54","slug":"microsoft-dot-net-neuerungen-csharp-13","status":"publish","type":"post","link":"https:\/\/stagingcopy.comitas.com\/dir\/blog-de\/microsoft-dot-net-neuerungen-csharp-13\/","title":{"rendered":"Neuerungen in C# 13"},"content":{"rendered":"\t\t
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Das Erscheinen von C# 13 bringt einige spannende neue Funktionen mit sich. Diese Features k\u00f6nnen mit der neuesten Version von Visual Studio 2022 oder dem .NET 9 Preview SDK ausprobiert werden.<\/strong><\/p>

Neue Escapesequenz – \\e<\/strong><\/h5>

Die neue Escape-Sequenz \\e kann als Zeichenliteral f\u00fcr das ESCAPE-Zeichen Unicode U+001B verwendet werden. Zuvor verwendete man \\u001b oder \\x1b. Die Verwendung von \\x1b wurde nicht empfohlen, da, falls die folgenden Zeichen nach 1b g\u00fcltige hexadezimale Ziffern waren, diese Teile der Escape-Sequenz wurden.<\/p>

Verbesserungen bei nat\u00fcrlichen Typen von Methodengruppen<\/strong><\/h5>

Diese Funktion optimiert die \u00dcberladungsaufl\u00f6sung von Methodengruppen. Zuvor erstellte der Compiler den vollst\u00e4ndigen Satz an Kandidatenmethoden f\u00fcr eine Methodengruppe. Falls ein nat\u00fcrlicher Typ ben\u00f6tigt wurde, wurde der nat\u00fcrliche Typ aus dem vollst\u00e4ndigen Satz an Kandidatenmethoden bestimmt.<\/p>

Das neue Verhalten besteht darin, den Satz an Kandidatenmethoden in jedem Bereich zu beschneiden, indem nicht anwendbare Kandidatenmethoden entfernt werden. Typischerweise handelt es sich dabei um generische Methoden mit der falschen Arity oder um Bedingungen, die nicht erf\u00fcllt sind. Der Prozess setzt sich fort bis zum n\u00e4chsten \u00e4usseren Bereich, nur wenn keine passenden Kandidatenmethoden gefunden wurden. Dieser Prozess folgt dem allgemeinen Algorithmus f\u00fcr die \u00dcberladungsaufl\u00f6sung genauer. Falls alle Kandidatenmethoden an einem bestimmten Bereich nicht \u00fcbereinstimmen, hat die Methodengruppe keinen nat\u00fcrlichen Typ.<\/p>

Impliziter Indexzugriff<\/strong><\/h5>

Der implizite “vom Ende” Indexoperator ^ ist nun in einem Objektinitialisierungsausdruck erlaubt. Zum Beispiel k\u00f6nnen Sie jetzt ein Array in einer Objektinitialisierung wie folgt initialisieren:<\/p>

”’<\/p>

var v = new S()<\/p>

{<\/p>

buffer =<\/p>

{<\/p>

[^1] = 0,<\/p>

[^2] = 1,<\/p>

[^3] = 2,<\/p>

[^4] = 3,<\/p>

[^5] = 4,<\/p>

[^6] = 5,<\/p>

[^7] = 6,<\/p>

[^8] = 7,<\/p>

[^9] = 8,<\/p>

[^10] = 9,<\/p>

}<\/p>

}<\/p>

”’;<\/p>

In Versionen vor C# 13 konnte der ^-Operator nicht in einer Objektinitialisierung verwendet werden. Sie mussten die Elemente von vorne indizieren.<\/p>

C# 13 wird von .NET 9 unterst\u00fctzt. Weitere Informationen finden Sie unter C#-Sprachversionierung<\/a>.<\/p>

Quelle: Neuerungen in C#\u00a013\u00a0\u2013 C#-Leitfaden – C# | Microsoft Learn<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Das Erscheinen von C# 13 bringt einige spannende neue Funktionen mit sich. Diese Features k\u00f6nnen mit der neuesten Version von Visual Studio 2022 oder dem .NET 9 Preview SDK ausprobiert werden. Neue Escapesequenz – e Die neue Escape-Sequenz e kann als Zeichenliteral f\u00fcr das ESCAPE-Zeichen Unicode U+001B verwendet werden. Zuvor verwendete man u001b oder x1b. […]<\/p>\n","protected":false},"author":4,"featured_media":15704,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[65,271,277],"tags":[],"class_list":["post-15695","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-de","category-microsoft-dotnet-de","category-welt-der-it"],"acf":[],"yoast_head":"\nNeuerungen in C# 13 - Comitas Staging Site<\/title>\n<meta name=\"description\" content=\"Erfahren Sie mehr \u00fcber die neuesten Funktionen in C# 13.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Neuerungen in C# 13 - 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