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

সংখ্যাসূচক এক্সপ্রেশনের মানের উপর নির্ভরশীল, প্রোগ্রাম কোডে বিভিন্ন নির্দিষ্ট লাইনের একটিতে শাখাভুক্ত করে থাকে।

Syntax:

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.

নোট আইকন

GoTo অথবা GoSub কনভেনশন কার্যকর।


Example:


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 & " From Sub 1 to" : Return
Sub2:
    sVar =sVar & " From Sub 2 to" : Return
Line1:
    sVar =sVar & " Label 1" : GoTo Ende
Line2:
    sVar =sVar & " Label 2"
Ende:
    MsgBox sVar,0,"On...GoSub"
End Sub

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