如果在Excel中选择了一个或多个区域，用下面的VBA代码可以统计当前工作表所选区域中单元格（或行、列）的数量：

1. 统计选定区域中的单元格数量：

Sub CountCellsInSelection()
Dim CellsNum As Integer
CellsNum = Selection.Count
MsgBox "所选区域中的单元格数量为： " & CellsNum
End Sub

2.统计选定区域中所包含的行数，如果选择了多个区域，则统计行数之和。

Sub CountRowsInSelection()
Dim RowsNum As Integer
For i = 1 To Selection.Areas.Count
RowsNum = RowsNum + Selection.Areas(i).Rows.Count
Next i
MsgBox "所选区域中的行数为： " & RowsNum
End Sub

3.统计选定区域中所包含的列数，如果选择了多个区域，则统计列数之和。

Sub CountColumnsInSelection()
Dim ColumnsNum As Integer
For i = 1 To Selection.Areas.Count
ColumnsNum = ColumnsNum + Selection.Areas(i).Columns.Count
Next i
MsgBox "所选区域中的列数为： " & ColumnsNum
End Sub

4.统计选定区域中的非空单元格数量：

Sub CountNonBlankInSelection()
Dim NonBlankNum As Integer
NonBlankNum = Application.CountA(Selection)
MsgBox "所选区域中包含非空单元格有" & NonBlankNum & "个。"
End Sub

5.统计选定区域中有填充色的单元格数量：

Sub CountColorCellsInSelection()
Dim ColorCellsNum As Integer
Dim rCell As Range
For Each rCell In Selection
If rCell.Interior.ColorIndex > 0 Then
ColorCellsNum = ColorCellsNum + 1
End If
Next rCell
MsgBox "所选区域中填充了颜色的单元格有" & ColorCellsNum & "个。"
End Sub

6.统计选定区域中包含公式的单元格数量：

Sub CountFormulaInSelection()
Dim FormulaNum As Integer
Dim rCell As Range
For Each rCell In Selection
If rCell.HasFormula Or rCell.HasArray Then
FormulaNum = FormulaNum + 1
End If
Next rCell
MsgBox "所选区域中包含公式的单元格有" & FormulaNum & "个。"
End Sub