Excel——合并单元格

Sub unMergeRng() '撤销合并单元格
    Dim rngUser As Range
    Dim rngMerge As Range
    Dim lngRowFirst As Long
    Dim lngRowEnd As Long
    Dim lngClnFirst As Long
    Dim lngColEnd As Long
    Dim lngRowMerge As Long
    Dim i As Long
    Dim j As Long
    Dim rngSelect As Range
    On Error Resume Next
    Set rngSelect = Selection
    '用户初始选择的单元格
    Set rngUser = Application.InputBox("请选择需要撤销合并的单元格区域！", Default:=rngSelect.Address, Type:=8)
    '用户选择需要撤销合并的单元格区域
    Set rngUser = Intersect(rngUser.Parent.UsedRange, rngUser)
    'Intersect避免用户选择整列等单元格范围时，程序运算数据虚大，运算效率低下
    If rngUser Is Nothing Then MsgBox "选择的单元格区域不能为空白": Exit Sub
    lngRowFirst = rngUser.Row
    '运算范围的初始行
    lngRowEnd = lngRowFirst + rngUser.Rows.Count - 1
    '运算范围的结束行
    lngClnFirst = rngUser.Column
    '运算范围的开始列
    lngColEnd = lngClnFirst + rngUser.Columns.Count - 1
    '运算范围的结束列
    Application.ScreenUpdating = False
    For i = lngRowFirst To lngRowEnd
    '遍历行
        For j = lngClnFirst To lngColEnd
        '遍历列
            lngRowMerge = Cells(i, j).MergeArea.Rows.Count
            '合并单元格的行数
            If lngRowMerge > 1 Then
                With Cells(i, j).Resize(lngRowMerge, 1)
                    .Select
                    .UnMerge
                    '撤销合并
                    .Value = Cells(i, j)
                    '填充数据
                End With
            End If
        Next
        i = i + lngRowMerge - 1
        '跳过已处理完的合并行
    Next
    rngSelect.Select
    Application.ScreenUpdating = True
End Sub