MSSql正確nuget包
Microsoft.EntityFrameworkCore.Tools
Microsoft.EntityFrameworkCore.SqlServer
MySql正確nuget包
Microsoft.EntityFrameworkCore.Tools
Pomelo.EntityFrameworkCore.MySql
mysql安裝nuget包運行異常（不支持core3.1）：
MySql.Data.EntityFrameworkCore
Method 'get_Info' in type 'MySql.Data.EntityFrameworkCore.Infraestructure.MySQLOptionsExtension' from assembly 'MySql.Data.EntityFrameworkCore, Version=8.0.19.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' does not have an implementation.