VB.Net学习笔记（循环语句）

Do While Loop举例

Public Class TestA

    Public Sub New()

        Dim i As Int32

        i = 1

        Do While i < 100 '先判断后执行

            i += 1

            Exit Do

        Loop

        i = 1

        Do

            i += 1

            Exit Do

        Loop While i < 100 '先执行后判断

        While i < 100 'Do While i < 100

            i += 1

            Exit While

        End While

    End Sub

End Class

For Next举例

Public Class TestA

    Public Sub New()

        Dim i As Int32

        For i = 0 To 100 Step 2

        Next i

    End Sub

End Class

For Each举例

Public Class TestA

    Public Sub New()

        Dim Found As Boolean = False

        Dim MyCollection As New Collection

        For Each MyObject As Object In MyCollection

            If MyObject.Text = "Hello" Then

                Found = True

                Exit For

            End If

        Next

    End Sub

End Class