Example of a delegate in C #

A function in C # can be called by a delegate that is declared.

The function is a static method, and the return value of the parameter declared by the delegate is consistent.

 Class Program {delegate float mathoperationdelegate (float x,float y);        static float Add (float x,float y) {return x+y;        } static float Sub (float x,float y) {return x-y;        } static float Multi (float x,float y) {return x*y;            } static float Div (float x,float y) {if (y==0) return 9999;        return x/y;             } static void Main (string[] args) {mathoperationdelegate mod;            Console.WriteLine ("Please enter the first number"); Float x=float.            Parse (Console.ReadLine ());            Console.WriteLine ("Please enter a second number"); Float y = float.             Parse (Console.ReadLine ());            Console.WriteLine ("Please enter an operational operation +-*/"); Char op = char.            Parse (Console.ReadLine ());                    Switch (OP) {case ' + ': MoD = new mathoperationdelegate (ADD);                Break       Case '-':             MoD = new Mathoperationdelegate (SUB);                Break                    Case ' * ': mod = new mathoperationdelegate (MULTI);                Break                    Case '/': mod = new mathoperationdelegate (DIV);                Break            Default:return;            } Float rs = mod (x, y);            Console.WriteLine ("Result: {0}", RS);        Console.readkey (); }    }

Example of a delegate in C #