试试
For n As Integer = 6 To Sheet.Rows.Count -2
Dim bh0 As String = sheet(n,0).Text
Dim bh1 As String = sheet(n,1).Text
Dim filter As String = "1=1"
If bh0 > "" Then
filter &= " and 交易时间 = #" & bh0 & "#"
Else
filter &= " And 交易时间 Is null"
End If
If bh1 > "" Then
filter &= " and 交易日期 = #" & bh1 & "#"
Else
filter &= " And 交易日期 Is null"
End If
msgbox(filter)
Dim dr As DataRow = DataTables("cw_lsbjh").Find(filter)
If dr Is Nothing Then '如果不存在同编号的订单
dr = DataTables("cw_lsbjh").AddNew()
End If
For m As Integer = 0 To nms.Length - 1
dr(nms(m)) = Sheet(n,m).Value
Next
Next
Tables("cw_lsbjh").ResumeRedraw()
CurrentTable.Save
Next