C#调用重写的子类方法,而不知道它是一个子类实例

using System;

public class BaseClass
{
    public virtual void Method()
    {
        Console.WriteLine("Base class method");
    }
}

public class DerivedClass : BaseClass
{
    public override void Method()
    {
        Console.WriteLine("Derived class method");
    }
}

public class Program
{
    public static void Main()
    {
        BaseClass baseClass = new DerivedClass();
        baseClass.Method();
    }
}