override virtual

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConstructCallVirtual
{
    class Program
    {
        static void Main(string[] args)
        {
            B b=new B();
        }
    }

    class A
    {
        public A()
        {
            Console.WriteLine("A()");
            DoSth();
        }
        public virtual void DoSth()
        {
            Console.WriteLine("A::DoSth()");
        }
    }

    class B:A
    {
        public B()
        {
            Console.WriteLine("B()");
            DoSth();
        }
        public virtual void DoSth()
        {
            Console.WriteLine("B::DoSth()");
        }
    }
//A()
//A::DoSth()
//B()
//B::DoSth()
//
}

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConstructCallVirtual
{
    class Program
    {
        static void Main(string[] args)
        {
            B b=new B();
        }
    }

    class A
    {
        public A()
        {
            Console.WriteLine("A()");
            DoSth();
        }
        public virtual void DoSth()
        {
            Console.WriteLine("A::DoSth()");
        }
    }

    class B:A
    {
        public B()
        {
            Console.WriteLine("B()");
            DoSth();
        }
        public override void DoSth()
        {
            Console.WriteLine("B::DoSth()");
        }
    }
//A()
//B::DoSth()
//B()
//B::DoSth()
//
}