兼容性

.net versionc	sharp version	windows version	visutal studio version	support
.net framework 3.5	> 1.0	> win7	tbd

Microsoft .NET Framework - Microsoft Lifecycle | Microsoft Learn

Microsoft .NET 和 .NET Core - Microsoft Lifecycle | Microsoft Learn

下载 .NET Framework 4.0 | 免费官方下载 (microsoft.com)

.NET 下载(Linux、macOS 和 Windows) (microsoft.com)