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etUpperBound & GetLowerBound係陣列常用的方法
上一篇文章中提到陣列係一數列，可使用GetUpperBound & GetLowerBound來取數列的上下限
GetUpperBound(0) 是取得第一維陣列維度上限
GetUpperBound(1) 是取得第二維陣列維度上限
GetLowerBound(0) 是取得第一維陣列維度下限
GetLowerBound(1) 是取得第二維陣列維度下限
(陣列下限的維度由0開始)

維度上下限01.png  


Public Class Form1
 Dim student_score() As Integer = {100, 90, 80}
 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

 

 Dim upper As Integer = student_score.GetUpperBound(0)

 Dim lower As Integer = student_score.GetLowerBound(0)

   For num = lower To upper

      ListBox1.Items.Add("第" & num & "位的學生成績為" & student_score(num))

   Next

   End Sub

End Class

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