ubuntu需要安装的软件：
1.sudo apt-get install openssh-server openssh-client
2.sudo apt-get git
3.安装vscode
4.安装.Net Core SDK
5.安装C#插件，C# Extensions 插件
6.安装nuget package manager
vscode 常用扩展：
1.C#
2.C# Extensions
3.Chinese (Simplified) Language Pack for Visual Studio Code
4.GitLens — Git supercharged
5.NuGet Package Manager
5.VSCode Great Icons
