主题：[求助]帮我检查下代码有什么问题

这样？

Dim Filter As String
With e.Form.Controls("发货单")
    If .checked = True Then
        Filter = Filter & "发货单 = false"
    End If
End With
With e.Form.Controls("快递单号")
    If .checked = True Then
        If Filter > "" Then
            Filter = Filter & " And 快递单号 = '0'"
        Else
            Filter = "快递单号 = '0'"
        End If
    End If
End With