在c#中如何安全地将静态类转换为实例化的类?

I have recently (a couple of months ago) changed jobs and have inherited a codebase which violates every single one of the SOLID principles as many times as it possibly can. It seems as though the people who wrote this code decided to study every single good coding practice in detail and violate them all as often and most radically as they possibly could.I have recently (a couple of months ago) change