ubuntu下.NET Core修改版本（卸载）
下载符合开发环境的最佳sdk版本
| OS | Development Environment | .NET Core SDK |
|---|---|---|
| Any supported | Command line and/or Visual Studio Code | 2.2.401 |
| Windows | Visual Studio 2019 version 16.2 | 2.2.401 |
| Windows | Visual Studio 2019 version 16.1 | 2.2.301 |
| Windows | Visual Studio 2019 version 16.0 | 2.2.205 |
| Windows | Visual Studio 2017 | 2.2.108 |