using System;
namespace ConsoleApplication1
{
class Program
{
delegate double PD(double p1, double p2);
static double Multiply(double p1, double p2)
{
return p1 * p2;
}
static double Divide(double p1, double p2)
{
return p1 / p2;
}
static double Plus(double p1,double p2)
{
return p1+p2;
}
static double Minus(double p1, double p2)
{
return p1 - p2;
}
static void Main(string[] args)
{
PD pro;
Console.WriteLine("Enter 2 numbers separated withed with args comma:");
string input = Console.ReadLine(); int commaPos = input.IndexOf(',');
double p1 = Convert.ToDouble(input.Substring(0, commaPos));
double p2 = Convert.ToDouble(input.Substring(commaPos + 1, input.Length - 1 - commaPos));
Console.WriteLine("Enter Mto mutiply or D to divide:");
input = Console.ReadLine();
if (input == "M")
pro = new PD(Multiply);
else if(input=="D")
pro = new PD(Divide);
else if (input == "P") pro = new PD(Plus);
else pro = new PD(Minus);
Console.WriteLine("Result:{0}", pro(p1, p2));
Console.ReadKey();
}
}
}
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