轉換時做循環到下一個循環

Question

我需要幫助轉換此代碼類型從Do Loop While和Do While Loop到For...Next循環。我使用Visual Basic 2010 Express作爲運行這些代碼的程序，如果有人能幫助我，我將非常感謝。以下是需要轉換爲For ... Next循環類型的代碼。再次感謝任何能夠幫助的人。

Private Sub btnDo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDo.Click 
    Dim intNum, intSum As IntegerDo 
    intSum += intNum ‘accumulator/running total 
    intNum += 2  ‘update intNum 
    Loop While (intNum <= 50) 
     Me.lblDoAnswer.Text = intSum.ToString 
End Sub 

Private Sub btnDoWhile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)  Handles btnDoWhile.Click Dim intNum, intSum As Integer  
    Do While (intNum <= 50) 
     intSum += intNum ‘accumulator/running total 
     intNum += 2  ‘update intNum 
    Loop 
    Me.lblDoWhileAnswer.Text = intSum.ToString 
End Sub 

Answer 1

試試這個：

For intNum As Integer = 0 To 50 Step 2 
    intSum += intNum ‘accumulator/running total 
Next 

注：Step 2是intNum += 2語法，你在Do循環有相當。