陣列For Each.In.Next敘述－興小弟讀書筆記

For Each.In.Next敘述

會將集合物件包括陣列中的元素逐一放入指定的變數名稱

以下的範例是將student_score陣列資料copy給number，並且加以計算

須留意 For Each.In.Next的變數名稱的資料型別和集合物件中元素的資料型別一致

Public Class Form1

Dim student_score() As Integer = {100, 90, 80, 70, 60, 50, 40}

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))

For Each number As Integer In student_score

'將student_score陣列資料copy給number

If number >= 40 And number <= 60 Then

'如果數字在40與60之間則繼續

Continue For

End If

ListBox2.Items.Add("符合及格學生成績為" & number)

End Sub

End Class

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