using System;

​

delegate int NumberChanger(int n);

namespace VietJackCsharp

{

    class TestCsharp

    {

        static int num = 10;

        public static int AddNum(int p)

        {

            num += p;

            return num;

        }

​

        public static int MultNum(int q)

        {

            num *= q;

            return num;

        }

​

        public static int getNum()

        {

            return num;

        }

​

        static void Main(string[] args)

        {

            Console.WriteLine("Vi du minh hoa Delegate trong C#");

            Console.WriteLine("----------------------------------");

​

            //tao cac doi tuong delegate

            NumberChanger nc;

            NumberChanger nc1 = new NumberChanger(AddNum);

            NumberChanger nc2 = new NumberChanger(MultNum);

            nc = nc1;

            nc += nc2;

​

            //goi multicast

            nc(5);

            Console.WriteLine("Gia tri cua num la: {0}", getNum());

            //Console.ReadKey();

        }

    }

}