On...GoSub Statement; On...GoTo Statement
Verzweigt an eine von mehreren angegebenen anderen Stellen des Programms in Abhängigkeit eines numerischen Ausdrucks.
On expression GoSub Label1[, Label2[, Label3[,...]]]
On expression GoTo Label1[, Label2[, Label3[,...]]]
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.
Die Konventionen für GoTo oder GoSub sind zulässig.
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 & " Von Sub 1 nach" : Return
Sub2:
sVar =sVar & " Von Sub 2 nach" : Return
Line1:
sVar =sVar & " Marke 1" : GoTo Ende
Line2:
sVar =sVar & " Marke 2"
Ende:
MsgBox sVar,0,"On...GoSub"
End Sub