関連ワード:  .net framework vs standard    .net framework standard vs core    .net framework vs .net standard 2.1 unity    .net framework vs .net standard unity    .net framework vs .net standard 2.1    .net framework and .net standard    .net framework and .net standard compatibility    class library .net framework vs standard    .net framework core and standard    .net framework 4.8 vs .net standard 2.0