我如何在VB.NET中编写下面的算法？
Procedure logfile()
{
if "C:\textfile.txt"=exist then
open the textfile;
else
create the textfile;
end if
go to the end of the textfile;
write new line in the textfile;
save;
close;
}
Dim FILE_NAME As String = "C:\textfile.txt"
Dim i As Integer
Dim aryText(4) As String
aryText(0) = "Mary WriteLine"
aryText(1) = "Had"
aryText(2) = "Another"
aryText(3) = "Little"
aryText(4) = "One"
Dim objWriter As New System.IO.StreamWriter(FILE_NAME,True)
For i = 0 To 4
objWriter.WriteLine(aryText(i))
Next
objWriter.Close()
MsgBox("Text Appended to the File")
如果在System.IO.StreamWriter的构造函数中将第二个参数设置为True,则它将附加到文件(如果已存在),或者如果不存在则创建新文件.