Axuda do LibreOffice 24.8
Calls a subroutine that is indicated by a label inside a Sub 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.
GoSub label[:]
label: A line identifier indicating where to continue execution. The scope of a label in that of the routine it belongs to.
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 (":").
Sub/Function foo
' instrucións
GoSub label
' instrucións
Exit Sub/Function
label:
' instrucións
Return
End Sub/Function
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.
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