How to pass variable number of arguments using Params?

If we want to pass variable number of arguments from calling function to called function, we can use the Params Arrays
e.g.

public class ParamTest
{
	static void Main()
	{
		//calling function
		PerformArithmeticOperation(20,10,"+"); //perform addition
		PerformArithmeticOperation(20,10,"-"); //perform subtraction
		PerformArithmeticOperation(20,10,"*"); //perform multiplication
		PerformArithmeticOperation(20,10,"/"); //perform division
	}

	//called function
	public static void PerformArithmeticOperation(params object[] items)
	{        
	  var result = 0;
	  switch (Convert.ToString(items[2]))   //items[2] is the operator(s) i.e. +,-,*,/
	 {
	 case '+': result = Convert.ToInt32(items[0]) + Convert.ToInt32(items[1]); break;
	 case '-': result = Convert.ToInt32(items[0]) - Convert.ToInt32(items[1]); break;
	 case '*': result = Convert.ToInt32(items[0]) * Convert.ToInt32(items[1]); break;
	 case '/': result = Convert.ToInt32(items[0]) / Convert.ToInt32(items[1]); break;
				
	}
	 Console.WriteLine(result);		
	}
}

Ya nice one.If we use class also its better
public class Operation{
int a{get;set;}
int b{get;set;}
char value{get;set;}
}
PerformArithmeticOperation(Details);

 public static void PerformArithmeticOperation(Operation Details)

        {        

          var result = 0;

          switch (Details.value)   //items[2] is the operator(s) i.e. +,-,*,/

         {

         case '+': result = //
case '-': result =//

         case '*': result = //

         case '/': result = //

                                

        }

         Console.WriteLine(result);             

        }

}