Output parameters of c#--method

Problem Description:

Textbook example, output parameter out of the implementation

Program code:

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;

Namespace ConsoleApplication3
{
    class Calculateclass  
    {public
        static void Calculate (int x,int y,out int Add,out int sub)
        {
        add=x+y;
        Sub=x-y
        }
    }
    Class MyClass
    {public
       static void Main ()
        {
           int a=13,b=19,c,d;
           Calculateclass.calculate (a,b,out c,out D);
           Console.WriteLine ("A+b={0},a-b={1}", c,d);
           Console.readkey ();}}

Knowledge Point Understanding:

Output parameter out does not open new storage area, does not occupy children's space

Run Result: