Bu kodları kullanabilirsin.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Dsy As System.IO.StreamWriter
Dsy = My.Computer.FileSystem.OpenTextFileWriter("c:\test.txt", True)
Dsy.WriteLine("Deneme yazısı")
Dsy.Close()
End Sub
End Class

<<< 10-HAGİ-10 >>>