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Dim ddd As New ArrayList
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
ddd.Add("ooo")
ddd.Add("ffo")
Label1.Text = ddd.Count
End Sub
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
ddd.Add("fff")
Label1.Text = ddd.Count
End Sub
'把Dim ddd As New ArrayList改成
Shared ddd As New ArrayList()