EF 数据库连接MySql

nuget安装

microsoft.entityframeworkcore.tools
pomelo.entityframeworkcore.mysql

如果mysql安装了会产生异常（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.