如何在 vb.net 中读写逗号分隔的文本文件
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How to read and write comma delimited text files in vb.net
提问by user3525310
I am currently converting some old VB6 code to VB.net 2013 and am having difficulty reading and writing comma delimited text files. The old VB6 read/write code was straightforward using the Input statement and storing the comma delimited values in the following variables.
我目前正在将一些旧的 VB6 代码转换为 VB.net 2013，并且在读写逗号分隔的文本文件时遇到困难。旧的 VB6 读/写代码很简单，使用 Input 语句并将逗号分隔的值存储在以下变量中。
Open FileName For Input As #1
Input #1, A, B, C, D
Input #1, E, F, G, H
Input #1, I, J, K, L
Close #1
The user would then have the ability to save the file changes back to the comma delimited text file using the Write statement as follows:
然后，用户可以使用 Write 语句将文件更改保存回逗号分隔的文本文件，如下所示：
Open FileName For Output As #1
Write #1, A, B, C, D
Write #1, E, F, G, H
Write #1, I, J, K, L
Close #1
This should be a fairly simple task in VB.NET but I am having trouble getting it right. Any help is appreciated.
这在 VB.NET 中应该是一项相当简单的任务，但我无法正确完成。任何帮助表示赞赏。
采纳答案by Hossein Salmanian
consider that you have some string value like this Name = "Tom" LastName = "Sanders" Salary = "25000"so you should import the System.IO namespace and then write code for write the values to text file same as below
考虑到你有一些像这样的字符串值 Name = "Tom" LastName = "Sanders" Salary = "25000"所以你应该导入 System.IO 命名空间，然后编写代码将值写入文本文件，如下所示
Dim Name, LastName, Salary As String
Name = "Tom"
LastName = "Sanders"
Salary = "25000"
Dim wr As StreamWriter
wr = New StreamWriter("C:\SampleTextFile.txt")
wr.WriteLine(String.Format("{0},{1},{2}", Name, LastName, Salary))
wr.Flush()
wr = Nothing
