Day 12th (function)

Function:

The function is written under program, void means no return value, and the object in () represents the parameter

1. No return value no parameters

public void AA ()

{

}

2. There are no return values for parameters

public void AA (int a)

{

}

3. There is no parameter for return value

public double AA ()

{

}

4. There are parameters for return values

public double aa (int a)

{

}

Public means that functions are common, and other CS can also reference

Usage:

Program B=new program ();

B.aa ();

Cases

1   class Program2     {3                Public DoubleMaxDoubleADoubleb)4         {5             if(A >b)6             {7                 returnA;8             }9             ElseTen             { One                 returnb; A             } -        } -  the  -  Static voidMain (string[] args) -         {            -Console.Write ("Please enter the first number:"); +             DoubleA =int. Parse (Console.ReadLine ()); -Console.Write ("Please enter a second number:"); +             Doubleb =int. Parse (Console.ReadLine ()); AConsole.Write ("Please enter a third number:"); at             Doublec =int. Parse (Console.ReadLine ()); -Program Daxiao =NewProgram (); -             DoubleD =Daxiao.max (c, Daxiao.max (A, b)); - Console.Write (d); -         } -}

Day 12th (function)