C#从枚举动态实例化类型

public enum ObjectType
{
    TypeA,
    TypeB,
    TypeC
}

public class TypeA
{
    public void MethodA()
    {
        Console.WriteLine("This is TypeA");
    }
}

public class TypeB
{
    public void MethodB()
    {
        Console.WriteLine("This is TypeB");
    }
}

public class TypeC
{
    public void MethodC()
    {
        Console.WriteLine("This is TypeC");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        ObjectType objectType = ObjectType.TypeA; // 枚举值

        // 使用反射根据枚举值动态实例化类型
        object instance = null;
        switch (objectType)
        {
            case ObjectType.TypeA:
                instance = Activator.CreateInstance(typeof(TypeA));
                ((TypeA)instance).MethodA();
                break;
            case ObjectType.TypeB:
                instance = Activator.CreateInstance(typeof(TypeB));
                ((TypeB)instance).MethodB();
                break;
            case ObjectType.TypeC:
                instance = Activator.CreateInstance(typeof(TypeC));
                ((TypeC)instance).MethodC();
                break;
        }
    }
}