如果要在Excel中用VBA的方法以根据某列内容删除重复的行，即当某列有重复数据时仅保留一行，可以用下面的VBA代码。假如以A列为参考，工作表的第一行为标题行，数据从第二行开始。

    方法一：用工作表函数CountIf判断该行是否重复

Sub 删除重复行1()
Dim i As Long
Application.ScreenUpdating = False
For i = Range("A65536").End(xlUp).Row To 3 Step -1
  If WorksheetFunction.CountIf(Range("A2:A" & i), Cells(i, 1)) > 1 Then
    Cells(i, 1).EntireRow.delete
  End If
Next
Application.ScreenUpdating = True
End Sub

    方法二：先高级筛选，再删除隐藏行

Sub 删除重复行2()
Dim rCell As Range, rRng As Range, dRng As Range
On Error Resume Next
Application.ScreenUpdating = False
Set rRng = Range("A1:A" & Range("A65536").End(xlUp).Row)
rRng.AdvancedFilter Action:=xlFilterInPlace, unique:=True
For Each rCell In rRng
  If rCell.EntireRow.Hidden = True Then
     If dRng Is Nothing Then
       Set dRng = rCell.EntireRow
      Else
       Set dRng = Application.Union(dRng, rCell.EntireRow)
      End If
  End If
Next
If Not dRng Is Nothing Then dRng.delete
ActiveSheet.ShowAllData
Application.ScreenUpdating = True
End Sub