通过 VB.NET 创建/编辑文本文件 [英] Creating/editing textfile through VB.NET

问题描述

如何在 VB.NET 中编写下面的算法?

How do I code the algorithm below in VB.NET?

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;
}

推荐答案

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，它将附加到一个文件(如果它已经存在)，或者创建一个新的一个如果没有.

If you set the second parameter to True in the System.IO.StreamWriter's constructor it will append to a file if it already exists, or create a new one if it doesn't.

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