vb.net 压缩access数据库

您可以使用VB.NET中的System.IO.Compression命名空间来压缩和解压缩Access数据库文件。下面是一个简单的示例代码：

Imports System.IO
Imports System.IO.Compression

Public Class Form1
    Private Sub btnCompress_Click(sender As Object, e As EventArgs) Handles btnCompress.Click
        Dim sourcePath As String = "C:\path\to\source.mdb"
        Dim compressedPath As String = "C:\path\to\compressed.zip"

        Using archive As ZipArchive = ZipFile.Open(compressedPath, ZipArchiveMode.Create)
            archive.CreateEntryFromFile(sourcePath, "database.mdb")
        End Using

        MessageBox.Show("数据库已成功压缩！")
    End Sub

    Private Sub btnDecompress_Click(sender As Object, e As EventArgs) Handles btnDecompress.Click
        Dim compressedPath As String = "C:\path\to\compressed.zip"
        Dim destinationPath As String = "C:\path\to\destination.mdb"

        Using archive As ZipArchive = ZipFile.OpenRead(compressedPath)
            Dim entry As ZipArchiveEntry = archive.GetEntry("database.mdb")
            entry.ExtractToFile(destinationPath, True)
        End Using

        MessageBox.Show("数据库已成功解压缩！")
    End Sub
End Class

请注意，以上代码将Access数据库文件打包为ZIP文件，然后解压到指定位置。要运行此代码，您需要将源数据库文件的路径和压缩/解压缩后的目标路径更改为您自己的路径。