Voir la source de Csharp 9

[[Category:CSharp]]
= Liens =
* [https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-9 What's new in C# 9.0]
* [https://docs.microsoft.com/en-gb/dotnet/csharp/language-reference/configure-language-version C# language versioning]

= [https://medium.com/@SergioPedri/enabling-and-using-c-9-features-on-older-and-unsupported-runtimes-ce384d8debb Enabling and using C# 9 features on older and “unsupported” runtimes] =
<filebox fn='MyProject.csproj' lang='xml'>
<LangVersion>9.0</LangVersion>
</filebox>