主题：请教想删除数据完全相同的行

 参考代码

Dim i As Integer
For i  = DataTables("表A").DataRows.Count-1 To 0 Step -1
    Dim dr As DataRow = DataTables("表A").DataRows(i)
    Dim dr2 As DataRow = DataTables("表A").Find("第一列='" & dr("第一列") & "' and 第二列='" & dr("第二列") & "' and _Identify <> " & dr("_Identify"))
    If dr2 IsNot Nothing Then
        dr2.Delete
    End If
Next