VB.NET DeflateStream构造函数代码示例

OGeek|极客世界-中国程序员成长平台 › 门户 › 编程› VB.NET›VB.NET教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了VB.NET中System.IO.Compression.DeflateStream.DeflateStream构造函数的典型用法代码示例。如果您正苦于以下问题：VB.NET DeflateStream构造函数的具体用法？VB.NET DeflateStream怎么用？VB.NET DeflateStream使用的例子？那么恭喜您, 这里精选的构造函数代码示例或许可以为您提供帮助。您也可以进一步了解该构造函数所在类System.IO.Compression.DeflateStream的用法示例。

在下文中一共展示了DeflateStream构造函数的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

示例1: Module1

' 导入命名空间
Imports System.IO
Imports System.IO.Compression

Module Module1

    Sub Main()
        Dim directoryPath As String = "c:\users\public\reports"
        Dim directorySelected As DirectoryInfo = New DirectoryInfo(directoryPath)

        For Each fileToCompress As FileInfo In directorySelected.EnumerateFiles()
            Compress(fileToCompress)
        Next
    End Sub

    Public Sub Compress(fileToCompress As FileInfo)
        Using originalFileStream As FileStream = fileToCompress.OpenRead()
            If ((File.GetAttributes(fileToCompress.FullName) & FileAttributes.Hidden) <> FileAttributes.Hidden And fileToCompress.Extension <> ".cmp") Then
                Using compressedFileStream As FileStream = File.Create(fileToCompress.FullName + ".cmp")
                    Using compressionStream As DeflateStream = New DeflateStream(compressedFileStream, CompressionLevel.Fastest)
                        originalFileStream.CopyTo(compressionStream)
                    End Using
                End Using
            End If
        End Using
    End Sub

End Module

开发者ID:VB.NET开发者，项目名称:System.IO.Compression，代码行数:28，代码来源:DeflateStream

示例2: Program

' 导入命名空间
Imports System.IO
Imports System.IO.Compression

Public Class Program
    Shared directoryPath As String = "c:\temp"
    Public Shared Sub Main()

        Dim directorySelected As New DirectoryInfo(directoryPath)
        Compress(directorySelected)


        For Each fileToDecompress As FileInfo In directorySelected.GetFiles("*.cmp")
            Decompress(fileToDecompress)
        Next
    End Sub

    Public Shared Sub Compress(directorySelected As DirectoryInfo)

        For Each file__1 As FileInfo In directorySelected.GetFiles("*.xml")
            Using originalFileStream As FileStream = file__1.OpenRead()
                If (File.GetAttributes(file__1.FullName) And FileAttributes.Hidden) <> FileAttributes.Hidden And file__1.Extension <> ".cmp" Then
                    Using compressedFileStream As FileStream = File.Create(file__1.FullName & ".cmp")
                        Using compressionStream As Compression.DeflateStream = New DeflateStream(compressedFileStream, CompressionMode.Compress)
                            originalFileStream.CopyTo(compressionStream)
                        End Using
                    End Using

                    Dim info As New FileInfo(directoryPath & "\" & file__1.Name & ".cmp")
                    Console.WriteLine("Compressed {0} from {1} to {2} bytes.", file__1.Name, file__1.Length, info.Length)
                End If
            End Using
        Next
    End Sub

    Public Shared Sub Decompress(fileToDecompress As FileInfo)
        Using originalFileStream As FileStream = fileToDecompress.OpenRead()
            Dim currentFileName As String = fileToDecompress.FullName
            Dim newFileName As String = currentFileName.Remove(currentFileName.Length - fileToDecompress.Extension.Length)

            Using decompressedFileStream As FileStream = File.Create(newFileName)
                Using decompressionStream As New DeflateStream(originalFileStream, CompressionMode.Decompress)
                    decompressionStream.CopyTo(decompressedFileStream)
                    Console.WriteLine("Decompressed: {0}", fileToDecompress.Name)
                End Using
            End Using
        End Using
    End Sub
End Class

开发者ID:VB.NET开发者，项目名称:System.IO.Compression，代码行数:49，代码来源:DeflateStream

示例3: Module1

' 导入命名空间
Imports System.IO
Imports System.IO.Compression

Module Module1

    Sub Main()
        Dim directoryPath As String = "c:\users\public\reports"
        Dim directorySelected As DirectoryInfo = New DirectoryInfo(directoryPath)

        For Each fileToCompress As FileInfo In directorySelected.EnumerateFiles()
            Compress(fileToCompress)
        Next
    End Sub

    Public Sub Compress(fileToCompress As FileInfo)
        Using originalFileStream As FileStream = fileToCompress.OpenRead()
            If ((File.GetAttributes(fileToCompress.FullName) & FileAttributes.Hidden) <> FileAttributes.Hidden And fileToCompress.Extension <> ".cmp") Then
                Using compressedFileStream As FileStream = File.Create(fileToCompress.FullName + ".cmp")
                    Using compressionStream As DeflateStream = New DeflateStream(compressedFileStream, CompressionLevel.Fastest, True)
                        originalFileStream.CopyTo(compressionStream)
                    End Using
                    Console.WriteLine(String.Format("file compressed to {0} bytes", compressedFileStream.Length))
                End Using
            End If
        End Using
    End Sub

End Module

开发者ID:VB.NET开发者，项目名称:System.IO.Compression，代码行数:29，代码来源:DeflateStream

注：本文中的System.IO.Compression.DeflateStream.DeflateStream构造函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。