C#委托 Delegate

    class Program
    {
        static void Main(string[] args)
        {
            DelegateFather[] handers =
            {
                new Delegate(),
                new AnonymousDelgate(),
                new LambdaDelgate(),
                new FuncDelgate()
            };
            foreach(var hander in handers)
            {
                var result = hander.DelegatFunction(10);
                Console.WriteLine(result);
            }
            
            Console.ReadKey();
        }
    }

    public abstract class DelegateFather
    {
        public const int num = 100;
        public delegate bool DelegatMethod(int a);
        public abstract bool DelegatFunction(int a);
    }

    public class Delegate:DelegateFather
    {
        public override bool DelegatFunction(int a)
        {
            DelegatMethod hander = CompareMethod;

            return hander(a);
        }

        public bool CompareMethod(int a)
        {
            return a > num;
        }
    }

    public class AnonymousDelgate:DelegateFather
    {
        public override bool DelegatFunction(int m)
        {
            DelegatMethod hander = delegate (int a) { return a > num; };
            return hander(m);
        }
    }

    public class LambdaDelgate:DelegateFather
    {
        public override bool DelegatFunction(int m)
        {
            DelegatMethod del = a => a > num;
            return del(m);
        }
    }

    public class FuncDelgate:DelegateFather
    {
        public override bool DelegatFunction(int m)
        {
            Func hander = a => a > num;
            return hander(m);
        }
    }