--
Dim t As Table = Tables("A")
For i As Integer = 0 To t.rows.count - 1
If t.rows(i)("第一列") = "丙" Then Continue For
Dim b As Boolean = false
For j As Integer = i+1 To math.min(i+11,t.rows.count - 1)
If t.rows(i)("第一列") = t.rows(j)("第一列") Then
b=True
Exit For
End If
Next
If b=False Then
t.rows(i)("第二列") = t.rows(i)("第一列") & "无"
End If
Next