参考 https://www.cnblogs.com/zhuzhi0819/p/12931691.html

需要安装 Costura.Fody

输入安装命令 PM> Install-Package Costura.Fody -Version 1.6.2

安装好 Costura.Fody 后，编译项目。此时生成的exe就可以独立运行了。

如果在编译过程中报以下警告:
MSBUILD : warning FodyPackageReference: Fody: The package reference for Costura.Fody is missing the 'compile' part in the IncludeAssets setting; it's recommended to completely remove IncludeAssets

解决方案：打开.csproj文件，在IncludeAssets中添加compile

<PackageReference Include="Costura.Fody">
  <Version>5.7.0</Version>
  <IncludeAssets>runtime; compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  <PrivateAssets>all</PrivateAssets>
</PackageReference>