static void Main(string[] args)
{
double a = 10;
double b = 12;
BinaryNumericOperartion op = CalculationService.ShowSum;
op += CalculationService.ShowMax;
op.Invoke(a, b);
Console.ReadLine();
}
static void Main(string[] args)
{
double a = 10;
double b = 12;
BinaryNumericOperartion op = CalculationService.Sum;
double result = op(a, b);
Console.WriteLine(result);
Console.ReadLine();
}
