On...GoSub Statement; On...GoTo Statement

Vertakt naar één van verschillende gespecificeerde regels in de programmacode, afhankelijk van de waarde van een numerieke expressie.

Syntaxis:

On GoSub/GoTo syntax


On expression GoSub Label1[, Label2[, Label3[,...]]]
On expression GoTo Label1[, Label2[, Label3[,...]]]

Parameters:

expression: Any numeric expression between 0 and 255 that determines which of the lines the program branches to. If expression is 0, the statement is not executed. If expression is greater than 0, the program jumps to the label that has a position number that corresponds to the expression (1 = First label; 2 = Second label)

label: Target line according to GoTo or GoSub structure.

Notitiepictogram

De GoTo of GoSub regels zijn geldig.


Voorbeeld:


Sub ExampleOnGosub
Dim iVar As Integer
Dim sVar As String
    iVar = 2
    sVar =""
    On iVar GoSub Sub1, Sub2
    On iVar GoTo Line1, Line2
    Exit Sub
Sub1:
    sVar =sVar & " Van Sub 1 naar" : Return
Sub2:
    sVar =sVar & " Van Sub 2 naar" : Return
Line1:
    sVar =sVar & " Label 1" : GoTo Einde
Line2:
    sVar =sVar & " Label 2"
Ende:
    MsgBox sVar,0,"On...GoSub"
End Sub

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