Question

我会将所有文件复制到另一个位置，此程序将过滤-7天，当它复制到另一个位置时，它会显示所有文件都复制在.log中。当我将所有文件复制到该位置时，我仍然难以获取日志。请参阅以下内容：

Imports System

Imports System.IO

Public Class Form1

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click


        Dim DirectoryToCopy As String
        Dim NewCopy As String

        Dim d As Date = Date.Today
        d = d.AddDays(-7)


        DirectoryToCopy = "c:\test\hmm.gdb"
        NewCopy = "D:\Data\hmm.gdb"

        'NewCopy = "D:\Data\hmm.gdb" & d.AddDays(-7)

        Dim objWriter As New System.IO.StreamWriter("D:\Data\update.log")


        If System.IO.Directory.Exists(DirectoryToCopy) = True Then

            My.Computer.FileSystem.CopyDirectory(DirectoryToCopy, NewCopy, True)

            Directory.GetFiles(NewCopy, d)
            d = Directory.GetCreationTime(NewCopy)
            System.IO.File.Copy(DirectoryToCopy, NewCopy)
            ' System.IO.File.Copy(NewCopy, "D:\Data\update.log")


            'objWriter.WriteLine("file copy")
            'objWriter.Close()

            'MsgBox("File Copied")

        End If
 End Sub
End Class

Answer 1

这里......我改变了你的代码..

Imports System.IO

Public Class Form1

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click


        Dim SourceFoDir As String= "C:\test"
        Dim TargetDir As String= "D:\Data"
        Dim NewCopy As String
        Dim oW As New System.IO.StreamWriter
        Dim d As Date = Date.Today

        d = d.AddDays(-7)

        If Not My.Computer.FileSystem.DirectoryExists(DirectoryToCopy) Then
        oW = My.Computer.FileSystem.OpenTextFileWriter("D:\Data\update.log", True)        

        For Each f In Directory.GetFiles(DirectoryToCopy)

            file.copy(f & d.Date.ToString, TargetDir)
            oW.WriteLine(f & d.Date & " copied")

        Next

        oW.Close()
        End If

  End Sub
End Class

vb.net将所有文件复制到具有过滤日期和显示日志的另一个位置

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