#region Action與Func內建委託
 
 
            //--------------無返回值的委託---------------------------
            //1.無引數，無返回值的委託
            Action action = () => { Console.WriteLine("無引數，沒有返回值!"); };
            action();
 
            //2.帶引數，無返回值的委託
            Action<int, int> action = (x, y) => { Console.WriteLine(x + y); };
            action(
 
100, 100);
            Console.Read();
 
 
            //--------------有返回值的委託----------------------------
            //1.無引數，有返回值的委託
            Func<int> func = () => { return 100; };
            int r = func();
            Console.WriteLine(r);
            Console.Read();
 
            
 
//2.帶引數，有返回值的委託
            Func<int, int, int, int, int> func = (x, y, z, w) => { return x + y + z + w; };
            var sum = func(1, 2, 3, 4);
            Console.WriteLine(sum);
            Console.Read();
 
            #endregion