将指定目录中所有Excel文件中的工作表合并到一个文件中

本文为《别怕，Excel VBA其实很简单（第3版）》随书问题参考答案

如果保存Excel文件的目录为D:\VBA其实很简单\，可以使用下面的过程：

Sub 合并工作表()
Application.ScreenUpdating = False
Dim FileName As String, Sht As Worksheet, Wb As Workbook
FileName = Dir("D:\VBA其实很简单\*.xls?")
Do While FileName ""
Workbooks.Open FileName:="D:\VBA其实很简单\" & FileName
Set Wb = ActiveWorkbook
For Each Sht In Wb.Worksheets
Sht.Copy after:=ThisWorkbook.Worksheets(ThisWorkbook.Worksheets.Count)
Next Sht
Wb.Close savechanges:=False
FileName = Dir
Loop
Application.ScreenUpdating = True
End Sub