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典型例子

发布时间：2016-01-14 22:11:05 来源：文档文库

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示例03-26：判断工作簿是否存在 Sub testFileExists()

MsgBox "如果文件不存在则用信息框说明,否则打开该文件." If Not FileExists("C:\文件夹\子文件夹\文件.xls") Then MsgBox "这个工作簿不存在!" Else

Workbooks.Open "C:\文件夹\子文件夹\文件.xls" End If End Sub

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Function FileExists(FullFileName As String) As Boolean '如果工作簿存在,则返回True

FileExists = Len(Dir(FullFileName)) > 0 End Function

示例说明：本示例使用自定义函数FileExists判断工作簿是否存在，若该工作簿已存在，则打开它。代码中，“C:\文件夹\子文件夹\文件.xls”代表工作簿所在的文件夹名、子文件夹名和工作簿文件名

示例03-27：判断工作簿是否已打开

[示例03-27-01]

Sub testWorkbookOpen()

MsgBox "如果工作簿未打开,则打开该工作簿." If Not WorkbookOpen("工作簿名.xls") Then Workbooks.Open "工作簿名.xls" End If End Sub

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Function WorkbookOpen(WorkBookName As String) As Boolean '如果该工作簿已打开则返回真 WorkbookOpen = False

On Error GoTo WorkBookNotOpen

If Len(Application.Workbooks(WorkBookName).Name) > 0 Then WorkbookOpen = True

MsgBox "该工作簿已打开" Exit Function End If

WorkBookNotOpen: End Function

示例说明：本示例中的函数WorkbookOpen用来判断工作簿是否打开。代码中，“工作簿名.xls”代表所要打开的工作簿名称。 [示例03-27-02]

Sub testWookbookIFOpen() Dim wb As String Dim bwb As Boolean

wb = "<要判断的工作簿名称>" bwb = WorkbookIsOpen(wb) If bwb = True Then

MsgBox "工作簿" & wb & "已打开." Else

MsgBox "工作簿" & wb & "未打开." End If End Sub

‘- - - - - - - - - - - - - - - - - - - - - - - Private Function WorkbookIsOpen(wbname) As Boolean Dim x As Workbook On Error Resume Next

Set x = Workbooks(wbname) If Err = 0 Then

WorkbookIsOpen = True Else

WorkbookIsOpen = False End If

End Function

示例03-28：备份工作簿

[示例03-28-01] 用与活动工作簿相同的名字但后缀名为.bak备份工作簿 Sub SaveWorkbookBackup()

Dim awb As Workbook, BackupFileName As String, i As Integer, OK As Boolean

If TypeName(ActiveWorkbook) = "Nothing" Then Exit Sub Set awb = ActiveWorkbook If awb.Path = "" Then

Application.Dialogs(xlDialogSaveAs).Show Else

BackupFileName = awb.FullName i = 0

While InStr(i + 1, BackupFileName, ".") > 0 i = InStr(i + 1, BackupFileName, ".") Wend

If i > 0 Then BackupFileName = Left(BackupFileName, i - 1) BackupFileName = BackupFileName & ".bak" OK = False

On Error GoTo NotAbleToSave With awb

Application.StatusBar = "正在保存工作簿..." .Save

Application.StatusBar = "正在备份工作簿..." .SaveCopyAs BackupFileName OK = True End With End If

NotAbleToSave:

Set awb = Nothing

Application.StatusBar = False If Not OK Then

MsgBox "备份工作簿未保存!", vbExclamation, ThisWorkbook.Name End If End Sub

示例说明：在当前工作簿中运行本示例代码后，将以与工作簿相同的名称但后缀名为.bak备份工作簿，且该备份与当前工作簿在同一文件夹中。其中，使用了工作簿的FullName属性和SaveCopyAs方法。

[示例03-28-02] 保存当前工作簿的副本到其它位置备份工作簿 Sub SaveWorkbookBackupToFloppyD()

Dim awb As Workbook, BackupFileName As String, i As Integer, OK As Boolean

If TypeName(ActiveWorkbook) = "Nothing" Then Exit Sub Set awb = ActiveWorkbook If awb.Path = "" Then

Application.Dialogs(xlDialogSaveAs).Show Else

BackupFileName = awb.Name OK = False

On Error GoTo NotAbleToSave

If Dir("D:\" & BackupFileName) <> "" Then Kill "D:\" & BackupFileName End If With awb

Application.StatusBar = "正在保存工作簿..." .Save

Application.StatusBar = "正在备份工作簿..." .SaveCopyAs "D:\" & BackupFileName OK = True End With End If

NotAbleToSave:

Set awb = Nothing

Application.StatusBar = False If Not OK Then

MsgBox "备份工作簿未保存!", vbExclamation, ThisWorkbook.Name End If End Sub 示例说明：本程序将把当前工作簿进行复制并以与当前工作簿相同的名称保存在D盘中。其中，使用了Kill方法来删除已存在的工作簿

示例03-29：从已关闭的工作簿中取值 [示例03-29-01]

Sub testGetValuesFromClosedWorkbook()

GetValuesFromAClosedWorkbook "C:", "Book1.xls", "Sheet1", "A1:G20" End Sub

‘- - - - - - - - - - - - - - - - - - - - - - - Sub GetValuesFromAClosedWorkbook(fPath As String, _

fName As String, sName, cellRange As String) With ActiveSheet.Range(cellRange)

.Formula = "='" & fPath & "\[" & fName & "]" _ & sName & "'!" & cellRange .Value = .Value End With End Sub

示例说明：本示例包含一个子过程GetValuesFromAClosedWorkbook，用来从已关闭的工作簿中获取数据，主过程testGetValuesFromClosedWorkbook用来传递参数。本示例表示从C盘根目录下的Book1.xls工作簿的工作表Sheet1中的A1:G20单元格区域内获取数据，并将其复制到当前工作表相应单元格区域中。

[示例03-29-02]

Sub ReadDataFromAllWorkbooksInFolder()

Dim FolderName As String, wbName As String, r As Long, cValue As Variant Dim wbList() As String, wbCount As Integer, i As Integer FolderName = "C:\文件夹名" '创建文件夹中工作簿列表 wbCount = 0

wbName = Dir(FolderName & "\" & "*.xls") While wbName <> ""

wbCount = wbCount + 1

ReDim Preserve wbList(1 To wbCount) wbList(wbCount) = wbName wbName = Dir Wend

If wbCount = 0 Then Exit Sub '从每个工作簿中获取数据 r = 0

Workbooks.Add

For i = 1 To wbCount r = r + 1

cValue = GetInfoFromClosedFile(FolderName, wbList(i), "Sheet1", "A1")

Cells(r, 1).Formula = wbList(i) Cells(r, 2).Formula = cValue Next i End Sub

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Private Function GetInfoFromClosedFile(ByVal wbPath As String, _

wbName As String, wsName As String, cellRef As String) As Variant Dim arg As String

GetInfoFromClosedFile = ""

If Right(wbPath, 1) <> "\" Then wbPath = wbPath & "\" If Dir(wbPath & "\" & wbName) = "" Then Exit Function arg = "'" & wbPath & "[" & wbName & "]" & _

wsName & "'!" & Range(cellRef).Address(True, True, xlR1C1) On Error Resume Next

GetInfoFromClosedFile = ExecuteExcel4Macro(arg) End Function

示例说明：本示例将读取一个文件夹内所有工作簿中工作表Sheet1上单元格A1中的值到一个新工作簿中。代码中，“C:\文件夹名”代表工作簿所在的文件夹名。

[示例03-29-03]

Sub GetDataFromClosedWorkbook() Dim wb As Workbook

Application.ScreenUpdating = False '以只读方式打开工作簿

Set wb = Workbooks.Open("C:\文件夹名\文件.xls", True, True) With ThisWorkbook.Worksheets("工作表名") '从工作簿中读取数据

.Range("A10").Formula = wb.Worksheets("源工作表名").Range("A10").Formula

.Range("A11").Formula = wb.Worksheets("源工作表名").Range("A20").Formula

.Range("A12").Formula = wb.Worksheets("源工作表名").Range("A30").Formula

.Range("A13").Formula = wb.Worksheets("源工作表名").Range("A40").Formula End With

wb.Close False '关闭打开的源数据工作簿且不保存任何变化 Set wb = Nothing '释放内存