Excelのドロップダウンボックスで複数選択を設定する方法

Private Sub ListBox1_Change()
    If ReLoad Then Exit Sub '见下方说明
    For i = 0 To ListBox1.ListCount - 1
        If ListBox1.Selected(i) = True Then t = t & "," & ListBox1.List(i)
    Next
    ActiveCell = Mid(t, 2)
End Sub
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
    With ListBox1
        If ActiveCell.Column = 1 And ActiveCell.Row > 1 Then
            t = 
ActiveCell.Value
            ReLoad = True '如果是根据单元格的值修改列表框，则暂时屏蔽listbox的change事件。
            For i = 0 To .ListCount - 1 '根据活动单元格内容修改列表框中被选中的内容
                If InStr(t, .List(i)) Then
                    .Selected(i) = True
                    Else
                    .Selected(i) = False
                End If
            Next
            ReLoad = False
            .Top = ActiveCell.Top + ActiveCell.Height '以下语句根据活动单元格位置显示列表框
            .Left = ActiveCell.Left
            .Width = ActiveCell.Width
            .Visible = True
            Else
            .Visible = False
        End If
    End With
End Sub

Private Sub Worksheet_Change(ByVal Target As Range)
    Sheets("Sheet1").ListBox1.ListFillRange = "data!a1:a" & Cells(1, 1).End(xlDown).Row
End Sub