C# 文档 - 入门、教程、参考。 | Microsoft Learnhttps://learn.microsoft.com/zh-cn/dotnet/csharp/

Browse code samples | Microsoft LearnGet started with Microsoft developer tools and technologies. Explore our samples and discover the things you can build. https://code.msdn.microsoft.com

C# 教程_w3cschoolhttps://www.w3cschool.cn/csharp/

Microsoft Developer News | C++,C# & .NET Framework & More | CodeGuruhttps://www.codeguru.com/

ASP.NET Core | Open-source web framework for .NETBuild web apps and services that run on Windows, Linux, and macOS using C#, HTML, CSS, and JavaScript. Get started for free on Windows, Linux, or macOS.https://www.asp.net

C# Corner - Community of Software and Data Developers (c-sharpcorner.com)https://www.c-sharpcorner.com/