asp.net core 项目引用包版本问题

<Project Sdk="Microsoft.NET.Sdk.Web">

<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
<RuntimeFrameworkVersion>2.2.6</RuntimeFrameworkVersion>
</PropertyGroup>

<ItemGroup>
<None Remove="ViewsHomeIndex.cshtml~RF64c983.TMP" />
</ItemGroup>

<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.App" Version="2.2.6" />
<PackageReference Include="Microsoft.Orleans.Client" Version="2.4.1" />
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.3" />
<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
<PackageReference Include="ocelot" Version="13.5.2" />
</ItemGroup>

<ItemGroup>
<Folder Include="ViewsJieSe" />
</ItemGroup>

</Project>

标红的几行，要注意，如果 不写版本号，那么默认会根据本机安装的 .net core 的 大版本来绑定，绑定依赖的nuget库

绑定后 不能在nuget管理工具中 更改，但可以在这里手动 更改 大版本中的 小版本号，以达到升级的目的