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# GoSub...Return Statement

Calls a subroutine that is indicated by a label from a subroutine or a function. The statements following the label are executed until the next Return statement. Afterwards, the program continues with the statement that follows the GoSub statement.

## Sintaxe:

    ver Parámetros

## Parámetros:

Sub/Function

bloque de instrucións

Etiqueta

bloque de instrucións

Etiqueta GoSub

Exit Sub/Function

Etiqueta:

bloque de instrucións

Volver

End Sub/Function

The GoSub statement calls a local subroutine indicated by a label from within a subroutine or a function. The name of the label must end with a colon (":").

If the program encounters a Return statement not preceded by GoSub, LibreOffice Basic returns an error message. Use Exit Sub or Exit Function to ensure that the program leaves a Sub or Function before reaching the next Return statement.

The following example demonstrates the use of GoSub and Return. By executing a program section twice, the program calculates the square root of two numbers that are entered by the user.

## Exemplo:

    Sub ExampleGoSub

    Dim iInputa As Single

    Dim iInputb As Single

    Dim iInputc As Single

        iInputa = Int(InputBox("Introduza o primeiro número: ","EntradaNúmero"))

        iInputb = Int(InputBox("Introduza o segundo número: ","EntradaNúmero"))

        iInputc=iInputa

        GoSub SquareRoot

        Print "A raíz cadrada de";iInputa;" é";iInputc

        iInputc=iInputb

        GoSub SquareRoot

        Print "A raíz cadrada de";iInputb;" de";iInputc

        Exit Sub

    SquareRoot:

        iInputc=sqr(iInputc)

        Return

    End Sub