VB.NET如何使用Math.Round（）函数将百分比四舍五入为整数

Question

Noob here so apologies in advance if this is not worded correctly.

I have a function which is calculating two Integer variables to work out a percentage.

Public Function CalculatePercentCorrect() As Double

    Return (Correct / Tries) * 100

  End Function

I am then using this property to display within a label

If game.CheckAnswer(answer) = True Then
  AnswerLabel.Text = _
    String.Format("Correct! Your score is {0} out of {1} for {2} percent.", _
                   game.Correct, game.Tries, game.CalculatePercentCorrect())
Else
  AnswerLabel.Text = _
  String.Format("Incorrect. Your score is {0} out of {1} for {2} percent.", _
                game.Correct, game.Tries, game.CalculatePercentCorrect())
End If

However I require the percentage to be rounded up to a whole number, as it may show 66.6666666666667 percent for example.

I believe I should use the Math.Round function, however I'm not entirely sure how to use it in my example.

Any help would be much appreciated.

Answer 1

Math.Round Method on MSDN. Since it returns a Double when rounding a Double, for you it would be as simple as:

String.Format("Correct! Your score is {0} out of {1} for {2} percent.", _
    game.Correct, game.Tries, Math.Round(game.CalculatePercentCorrect()))

Answer 2

如果您想取整，可以使用

math.ceiling(game.CalculatePercentCorrect())