FileSystemObject 示例代码 · javascript详解

| JScript | [语言参考](#) | |-----|-----| # FileSystemObject 示例代码在本节描述的示例代码，提供真实的例子来示范在 **FileSystemObject** 对象模式中可用的许多功能。该代码显示了如何一起使用对象模式的所有功能，以及如何在您自己的代码中有效地使用这些功能。请注意，由于该代码是极一般的，所以要使该代码能够真正在您的机器上运行，可能需要一些其他代码和小小的变更。这些改变之所以必要，是因为在 Active Server Pages 和 Windows Scripting Host 之间，为输入和输出给用户采用了不同的方法。要在 Active Server Pages 上运行该代码，则采取以下步骤：创建一个标准的 Web 页，后缀名为 .asp。把下面的示例代码复制到 &ltBODY>...</BODY> 标记之间的文件中。把所有代码包装器到 <%...%> 标记内。把 **Option Explicit** 语句从当前位置移动到 HTML 页的最顶部，甚至在 <HTML> 开始标记前。把 <%...%> 标记放置在 **Option Explicit** 语句周围，以保证它在服务器端运行。把下面的代码添加到示例代码末尾： ~~~ Sub Print(x) ~~~ ~~~ Response.Write "<PRE>&ltFONT FACE="" ~~~ 宋体 ~~~ "" SIZE=""1"">" ~~~ ~~~ Response.Write x ~~~ ~~~ Response.Write "</FONT></PRE>" ~~~ ~~~ End Sub ~~~ ~~~ Main ~~~ 前面的代码增加一个将在服务器端运行，但在客户端显示结果的打印过程。要在 Windows Scripting Host 上运行该代码，则把下面的代码添加到示例代码的末尾： ~~~ Sub Print(x) ~~~ ~~~ WScript.Echo x ~~~ ~~~ End Sub ~~~ ~~~ Main ~~~ 下面就是示例代码： ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' FileSystemObject ~~~ 示例代码 ~~~ 'Copyright 1998 Microsoft Corporation ~~~ 。保留所有权利。 ~~~ ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Option Explicit ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 对于代码质量： ~~~ ' 1) ~~~ 下面的代码有许多字符串操作，用 ~~~ "&" ~~~ 运算符来把短字符串连接在一起。由于 ~~~ ' ~~~ 字符串连接是费时的，所以这是一种低效率的写代码方法。无论如何，它是 ~~~ ' ~~~ 一种非常好维护的写代码方法，并且在这儿使用了这种方法，因为该程序执行 ~~~ ' ~~~ 大量的磁盘操作，而磁盘操作比连接字符串所需的内存操作要慢得多。 ~~~ ' ~~~ 记住这是示范代码，而不是产品代码。 ~~~ ' ~~~ ~~~ ' 2) ~~~ 使用了 ~~~ "Option Explicit" ~~~ ，因为访问声明过的变量，比访问未声明的变量要 ~~~ ' ~~~ 稍微快一些。它还能阻止在代码中发生错误，例如，把 ~~~ DriveTypeCDROM ~~~ 误拼 ~~~ ' ~~~ 成了 ~~~ DriveTypeCDORM ~~~ 。 ~~~ ' ~~~ ~~~ ' 3) ~~~ 为了使代码更可读，该代码中没有错误处理。虽然采取了防范措施，来保证代码 ~~~ ' ~~~ 在普通情况下没有错误，但文件系统是不可预知的。在产品代码中，使用 ~~~ ' On Error Resume Next ~~~ 和 ~~~ Err ~~~ 对象来捕获可能发生的错误。 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 一些容易取得的全局变量 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Dim TabStop ~~~ ~~~ Dim NewLine ~~~ ~~~ Const TestDrive = "C" ~~~ ~~~ Const TestFilePath = "C:\Test" ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 由 ~~~ Drive.DriveType ~~~ 返回的常数 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Const DriveTypeRemovable = 1 ~~~ ~~~ Const DriveTypeFixed = 2 ~~~ ~~~ Const DriveTypeNetwork = 3 ~~~ ~~~ Const DriveTypeCDROM = 4 ~~~ ~~~ Const DriveTypeRAMDisk = 5 ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 由 ~~~ File.Attributes ~~~ 返回的常数 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Const FileAttrNormal = 0 ~~~ ~~~ Const FileAttrReadOnly = 1 ~~~ ~~~ Const FileAttrHidden = 2 ~~~ ~~~ Const FileAttrSystem = 4 ~~~ ~~~ Const FileAttrVolume = 8 ~~~ ~~~ Const FileAttrDirectory = 16 ~~~ ~~~ Const FileAttrArchive = 32 ~~~ ~~~ Const FileAttrAlias = 64 ~~~ ~~~ Const FileAttrCompressed = 128 ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 用来打开文件的常数 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Const OpenFileForReading = 1 ~~~ ~~~ Const OpenFileForWriting = 2 ~~~ ~~~ Const OpenFileForAppending = 8 ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ShowDriveType ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述给定 ~~~ Drive ~~~ 对象的驱动器类型。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - Drive.DriveType ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function ShowDriveType(Drive) ~~~ ~~~ Dim S ~~~ ~~~ Select Case Drive.DriveType ~~~ ~~~ Case DriveTypeRemovable ~~~ ~~~ S = "Removable" ~~~ ~~~ Case DriveTypeFixed ~~~ ~~~ S = "Fixed" ~~~ ~~~ Case DriveTypeNetwork ~~~ ~~~ S = "Network" ~~~ ~~~ Case DriveTypeCDROM ~~~ ~~~ S = "CD-ROM" ~~~ ~~~ Case DriveTypeRAMDisk ~~~ ~~~ S = "RAM Disk" ~~~ ~~~ Case Else ~~~ ~~~ S = "Unknown" ~~~ ~~~ End Select ~~~ ~~~ ShowDriveType = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ShowFileAttr ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述文件或文件夹的属性。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - File.Attributes ~~~ ~~~ ' - Folder.Attributes ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function ShowFileAttr(File) ' File ~~~ 可以是文件或文件夹 ~~~ Dim S ~~~ ~~~ Dim Attr ~~~ ~~~ Attr = File.Attributes ~~~ ~~~ If Attr = 0 Then ~~~ ~~~ ShowFileAttr = "Normal" ~~~ ~~~ Exit Function ~~~ ~~~ End If ~~~ ~~~ If Attr And FileAttrDirectory Then S = S & "Directory " ~~~ ~~~ If Attr And FileAttrReadOnly Then S = S & "Read-Only " ~~~ ~~~ If Attr And FileAttrHidden Then S = S & "Hidden " ~~~ ~~~ If Attr And FileAttrSystem Then S = S & "System " ~~~ ~~~ If Attr And FileAttrVolume Then S = S & "Volume " ~~~ ~~~ If Attr And FileAttrArchive Then S = S & "Archive " ~~~ ~~~ If Attr And FileAttrAlias Then S = S & "Alias " ~~~ ~~~ If Attr And FileAttrCompressed Then S = S & "Compressed " ~~~ ~~~ ShowFileAttr = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GenerateDriveInformation ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述可用驱动器的当前状态。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.Drives ~~~ ~~~ ' - Iterating the Drives collection ~~~ ~~~ ' - Drives.Count ~~~ ~~~ ' - Drive.AvailableSpace ~~~ ~~~ ' - Drive.DriveLetter ~~~ ~~~ ' - Drive.DriveType ~~~ ~~~ ' - Drive.FileSystem ~~~ ~~~ ' - Drive.FreeSpace ~~~ ~~~ ' - Drive.IsReady ~~~ ~~~ ' - Drive.Path ~~~ ~~~ ' - Drive.SerialNumber ~~~ ~~~ ' - Drive.ShareName ~~~ ~~~ ' - Drive.TotalSize ~~~ ~~~ ' - Drive.VolumeName ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GenerateDriveInformation(FSO) ~~~ ~~~ Dim Drives ~~~ ~~~ Dim Drive ~~~ ~~~ Dim S ~~~ ~~~ Set Drives = FSO.Drives ~~~ ~~~ S = "Number of drives:" & TabStop & Drives.Count & NewLine & NewLine ~~~ ~~~ ' ~~~ 构造报告的第一行。 ~~~ S = S & String(2, TabStop) & "Drive" ~~~ ~~~ S = S & String(3, TabStop) & "File" ~~~ ~~~ S = S & TabStop & "Total" ~~~ ~~~ S = S & TabStop & "Free" ~~~ ~~~ S = S & TabStop & "Available" ~~~ ~~~ S = S & TabStop & "Serial" & NewLine ~~~ ~~~ ' ~~~ 构造报告的第二行。 ~~~ S = S & "Letter" ~~~ ~~~ S = S & TabStop & "Path" ~~~ ~~~ S = S & TabStop & "Type" ~~~ ~~~ S = S & TabStop & "Ready?" ~~~ ~~~ S = S & TabStop & "Name" ~~~ ~~~ S = S & TabStop & "System" ~~~ ~~~ S = S & TabStop & "Space" ~~~ ~~~ S = S & TabStop & "Space" ~~~ ~~~ S = S & TabStop & "Space" ~~~ ~~~ S = S & TabStop & "Number" & NewLine ~~~ ~~~ ' ~~~ 分隔行。 ~~~ S = S & String(105, "-") & NewLine ~~~ ~~~ For Each Drive In Drives ~~~ ~~~ S = S & Drive.DriveLetter ~~~ ~~~ S = S & TabStop & Drive.Path ~~~ ~~~ S = S & TabStop & ShowDriveType(Drive) ~~~ ~~~ S = S & TabStop & Drive.IsReady ~~~ ~~~ If Drive.IsReady Then ~~~ ~~~ If DriveTypeNetwork = Drive.DriveType Then ~~~ ~~~ S = S & TabStop & Drive.ShareName ~~~ ~~~ Else ~~~ ~~~ S = S & TabStop & Drive.VolumeName ~~~ ~~~ End If ~~~ ~~~ S = S & TabStop & Drive.FileSystem ~~~ ~~~ S = S & TabStop & Drive.TotalSize ~~~ ~~~ S = S & TabStop & Drive.FreeSpace ~~~ ~~~ S = S & TabStop & Drive.AvailableSpace ~~~ ~~~ S = S & TabStop & Hex(Drive.SerialNumber) ~~~ ~~~ End If ~~~ ~~~ S = S & NewLine ~~~ ~~~ Next ~~~ ~~~ GenerateDriveInformation = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GenerateFileInformation ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述文件的当前状态。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - File.Path ~~~ ~~~ ' - File.Name ~~~ ~~~ ' - File.Type ~~~ ~~~ ' - File.DateCreated ~~~ ~~~ ' - File.DateLastAccessed ~~~ ~~~ ' - File.DateLastModified ~~~ ~~~ ' - File.Size ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GenerateFileInformation(File) ~~~ ~~~ Dim S ~~~ ~~~ S = NewLine & "Path:" & TabStop & File.Path ~~~ ~~~ S = S & NewLine & "Name:" & TabStop & File.Name ~~~ ~~~ S = S & NewLine & "Type:" & TabStop & File.Type ~~~ ~~~ S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(File) ~~~ ~~~ S = S & NewLine & "Created:" & TabStop & File.DateCreated ~~~ ~~~ S = S & NewLine & "Accessed:" & TabStop & File.DateLastAccessed ~~~ ~~~ S = S & NewLine & "Modified:" & TabStop & File.DateLastModified ~~~ ~~~ S = S & NewLine & "Size" & TabStop & File.Size & NewLine ~~~ ~~~ GenerateFileInformation = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GenerateFolderInformation ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述文件夹的当前状态。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - Folder.Path ~~~ ~~~ ' - Folder.Name ~~~ ~~~ ' - Folder.DateCreated ~~~ ~~~ ' - Folder.DateLastAccessed ~~~ ~~~ ' - Folder.DateLastModified ~~~ ~~~ ' - Folder.Size ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GenerateFolderInformation(Folder) ~~~ ~~~ Dim S ~~~ ~~~ S = "Path:" & TabStop & Folder.Path ~~~ ~~~ S = S & NewLine & "Name:" & TabStop & Folder.Name ~~~ ~~~ S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(Folder) ~~~ ~~~ S = S & NewLine & "Created:" & TabStop & Folder.DateCreated ~~~ ~~~ S = S & NewLine & "Accessed:" & TabStop & Folder.DateLastAccessed ~~~ ~~~ S = S & NewLine & "Modified:" & TabStop & Folder.DateLastModified ~~~ ~~~ S = S & NewLine & "Size:" & TabStop & Folder.Size & NewLine ~~~ ~~~ GenerateFolderInformation = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GenerateAllFolderInformation ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述一个文件夹和所有文件及子文件夹的当前状态。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - Folder.Path ~~~ ~~~ ' - Folder.SubFolders ~~~ ~~~ ' - Folders.Count ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GenerateAllFolderInformation(Folder) ~~~ ~~~ Dim S ~~~ ~~~ Dim SubFolders ~~~ ~~~ Dim SubFolder ~~~ ~~~ Dim Files ~~~ ~~~ Dim File ~~~ ~~~ S = "Folder:" & TabStop & Folder.Path & NewLine & NewLine ~~~ ~~~ Set Files = Folder.Files ~~~ ~~~ If 1 = Files.Count Then ~~~ ~~~ S = S & "There is 1 file" & NewLine ~~~ ~~~ Else ~~~ ~~~ S = S & "There are " & Files.Count & " files" & NewLine ~~~ ~~~ End If ~~~ ~~~ If Files.Count <> 0 Then ~~~ ~~~ For Each File In Files ~~~ ~~~ S = S & GenerateFileInformation(File) ~~~ ~~~ Next ~~~ ~~~ End If ~~~ ~~~ Set SubFolders = Folder.SubFolders ~~~ ~~~ If 1 = SubFolders.Count Then ~~~ ~~~ S = S & NewLine & "There is 1 sub folder" & NewLine & NewLine ~~~ ~~~ Else ~~~ ~~~ S = S & NewLine & "There are " & SubFolders.Count & " sub folders" & NewLine & NewLine ~~~ ~~~ End If ~~~ ~~~ If SubFolders.Count <> 0 Then ~~~ ~~~ For Each SubFolder In SubFolders ~~~ ~~~ S = S & GenerateFolderInformation(SubFolder) ~~~ ~~~ Next ~~~ ~~~ S = S & NewLine ~~~ ~~~ For Each SubFolder In SubFolders ~~~ ~~~ S = S & GenerateAllFolderInformation(SubFolder) ~~~ ~~~ Next ~~~ ~~~ End If ~~~ ~~~ GenerateAllFolderInformation = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GenerateTestInformation ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 生成一个字符串，来描述 ~~~ C:\Test ~~~ 文件夹和所有文件及子文件夹的当前状态。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.DriveExists ~~~ ~~~ ' - FileSystemObject.FolderExists ~~~ ~~~ ' - FileSystemObject.GetFolder ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GenerateTestInformation(FSO) ~~~ ~~~ Dim TestFolder ~~~ ~~~ Dim S ~~~ ~~~ If Not FSO.DriveExists(TestDrive) Then Exit Function ~~~ ~~~ If Not FSO.FolderExists(TestFilePath) Then Exit Function ~~~ ~~~ Set TestFolder = FSO.GetFolder(TestFilePath) ~~~ ~~~ GenerateTestInformation = GenerateAllFolderInformation(TestFolder) ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' DeleteTestDirectory ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 清理 ~~~ test ~~~ 目录。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.GetFolder ~~~ ~~~ ' - FileSystemObject.DeleteFile ~~~ ~~~ ' - FileSystemObject.DeleteFolder ~~~ ~~~ ' - Folder.Delete ~~~ ~~~ ' - File.Delete ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Sub DeleteTestDirectory(FSO) ~~~ ~~~ Dim TestFolder ~~~ ~~~ Dim SubFolder ~~~ ~~~ Dim File ~~~ ~~~ ~~~ ' ~~~ 有两种方法可用来删除文件： ~~~ FSO.DeleteFile(TestFilePath & "\Beatles\OctopusGarden.txt") ~~~ ~~~ Set File = FSO.GetFile(TestFilePath & "\Beatles\BathroomWindow.txt") ~~~ ~~~ File.Delete ~~~ ~~~ ' ~~~ 有两种方法可用来删除文件夹： ~~~ FSO.DeleteFolder(TestFilePath & "\Beatles") ~~~ ~~~ FSO.DeleteFile(TestFilePath & "\ReadMe.txt") ~~~ ~~~ Set TestFolder = FSO.GetFolder(TestFilePath) ~~~ ~~~ TestFolder.Delete ~~~ ~~~ End Sub ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' CreateLyrics ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 在文件夹中创建两个文本文件。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.CreateTextFile ~~~ ~~~ ' - TextStream.WriteLine ~~~ ~~~ ' - TextStream.Write ~~~ ~~~ ' - TextStream.WriteBlankLines ~~~ ~~~ ' - TextStream.Close ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Sub CreateLyrics(Folder) ~~~ ~~~ Dim TextStream ~~~ ~~~ ~~~ ~~~ Set TextStream = Folder.CreateTextFile("OctopusGarden.txt") ~~~ ~~~ ~~~ ~~~ TextStream.Write("Octopus' Garden ") ' ~~~ 请注意，该语句不添加换行到文件中。 ~~~ TextStream.WriteLine("(by Ringo Starr)") ~~~ ~~~ TextStream.WriteBlankLines(1) ~~~ ~~~ TextStream.WriteLine("I'd like to be under the sea in an octopus' garden in the shade,") ~~~ ~~~ TextStream.WriteLine("He'd let us in, knows where we've been -- in his octopus' garden in the shade.") ~~~ ~~~ TextStream.WriteBlankLines(2) ~~~ ~~~ TextStream.Close ~~~ ~~~ Set TextStream = Folder.CreateTextFile("BathroomWindow.txt") ~~~ ~~~ TextStream.WriteLine("She Came In Through The Bathroom Window (by Lennon/McCartney)") ~~~ ~~~ TextStream.WriteLine("") ~~~ ~~~ TextStream.WriteLine("She came in through the bathroom window protected by a silver spoon") ~~~ ~~~ TextStream.WriteLine("But now she sucks her thumb and wanders by the banks of her own lagoon") ~~~ ~~~ TextStream.WriteBlankLines(2) ~~~ ~~~ TextStream.Close ~~~ ~~~ End Sub ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' GetLyrics ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 显示 ~~~ lyrics ~~~ 文件的内容。 ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.OpenTextFile ~~~ ~~~ ' - FileSystemObject.GetFile ~~~ ~~~ ' - TextStream.ReadAll ~~~ ~~~ ' - TextStream.Close ~~~ ~~~ ' - File.OpenAsTextStream ~~~ ~~~ ' - TextStream.AtEndOfStream ~~~ ~~~ ' - TextStream.ReadLine ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function GetLyrics(FSO) ~~~ ~~~ Dim TextStream ~~~ ~~~ Dim S ~~~ ~~~ Dim File ~~~ ~~~ ' ~~~ 有多种方法可用来打开一个文本文件，和多种方法来从文件读取数据。 ~~~ ' ~~~ 这儿用了两种方法来打开文件和读取文件： ~~~ Set TextStream = FSO.OpenTextFile(TestFilePath & "\Beatles\OctopusGarden.txt", OpenFileForReading) ~~~ ~~~ ~~~ ~~~ S = TextStream.ReadAll & NewLine & NewLine ~~~ ~~~ TextStream.Close ~~~ ~~~ Set File = FSO.GetFile(TestFilePath & "\Beatles\BathroomWindow.txt") ~~~ ~~~ Set TextStream = File.OpenAsTextStream(OpenFileForReading) ~~~ ~~~ Do ~~~ ~~~ While Not TextStream.AtEndOfStream ~~~ ~~~ S = S & TextStream.ReadLine & NewLine ~~~ ~~~ Loop ~~~ ~~~ TextStream.Close ~~~ ~~~ GetLyrics = S ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' BuildTestDirectory ~~~ ~~~ ' ~~~ 目的： ~~~ ~~~ ~~~ ' ~~~ 创建一个目录分层结构来示范 ~~~ FileSystemObject ~~~ 。 ~~~ ' ~~~ 以这样的次序来创建分层结构： ~~~ ' C:\Test ~~~ ~~~ ' C:\Test\ReadMe.txt ~~~ ~~~ ' C:\Test\Beatles ~~~ ~~~ ' C:\Test\Beatles\OctopusGarden.txt ~~~ ~~~ ' C:\Test\Beatles\BathroomWindow.txt ~~~ ~~~ ' ~~~ 示范下面的内容 ~~~ ' - FileSystemObject.DriveExists ~~~ ~~~ ' - FileSystemObject.FolderExists ~~~ ~~~ ' - FileSystemObject.CreateFolder ~~~ ~~~ ' - FileSystemObject.CreateTextFile ~~~ ~~~ ' - Folders.Add ~~~ ~~~ ' - Folder.CreateTextFile ~~~ ~~~ ' - TextStream.WriteLine ~~~ ~~~ ' - TextStream.Close ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Function BuildTestDirectory(FSO) ~~~ ~~~ Dim TestFolder ~~~ ~~~ Dim SubFolders ~~~ ~~~ Dim SubFolder ~~~ ~~~ Dim TextStream ~~~ ~~~ ' ~~~ 排除 ~~~ (a) ~~~ 驱动器不存在，或 ~~~ (b) ~~~ 要创建的目录已经存在的情况。 ~~~ If Not FSO.DriveExists(TestDrive) Then ~~~ ~~~ BuildTestDirectory = False ~~~ ~~~ Exit Function ~~~ ~~~ End If ~~~ ~~~ If FSO.FolderExists(TestFilePath) Then ~~~ ~~~ BuildTestDirectory = False ~~~ ~~~ Exit Function ~~~ ~~~ End If ~~~ ~~~ Set TestFolder = FSO.CreateFolder(TestFilePath) ~~~ ~~~ Set TextStream = FSO.CreateTextFile(TestFilePath & "\ReadMe.txt") ~~~ ~~~ TextStream.WriteLine("My song lyrics collection") ~~~ ~~~ TextStream.Close ~~~ ~~~ Set SubFolders = TestFolder.SubFolders ~~~ ~~~ Set SubFolder = SubFolders.Add("Beatles") ~~~ ~~~ CreateLyrics SubFolder ~~~ ~~~ BuildTestDirectory = True ~~~ ~~~ End Function ~~~ ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ ' ~~~ 主程序 ~~~ ' ~~~ 首先，它创建一个 ~~~ test ~~~ 目录，以及一些子文件夹和文件。 ~~~ ~~~ ~~~ ' ~~~ 然后，它转储有关可用磁盘驱动器和 ~~~ test ~~~ 目录的某些信息， ~~~ ' ~~~ 最后，清除 ~~~ test ~~~ 目录及其所有内容。 ~~~ '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ~~~ ~~~ Sub Main ~~~ ~~~ Dim FSO ~~~ ~~~ ' ~~~ 设立全局变量。 ~~~ TabStop = Chr(9) ~~~ ~~~ NewLine = Chr(10) ~~~ ~~~ ~~~ ~~~ Set FSO = CreateObject("Scripting.FileSystemObject") ~~~ ~~~ If Not BuildTestDirectory(FSO) Then ~~~ ~~~ Print "Test directory already exists or cannot be created. Cannot continue." ~~~ ~~~ Exit Sub ~~~ ~~~ End If ~~~ ~~~ Print GenerateDriveInformation(FSO) & NewLine & NewLine ~~~ ~~~ Print GenerateTestInformation(FSO) & NewLine & NewLine ~~~ ~~~ Print GetLyrics(FSO) & NewLine & NewLine ~~~ ~~~ DeleteTestDirectory(FSO) ~~~ ~~~ End Sub ~~~ ~~~ [© 2000 Microsoft Corporation 版权所有。保留所有权利。使用规定。](#)