从文本文件中删除重复单词

Question

我有一个文本文件，包含将近45,000个单词，每行一个单词。成千上万的这些词出现超过10次。我想创建一个没有重复单词的新文件。我使用流读取器，但它只读取一次文件。我怎样才能摆脱重复的话。请帮帮我。由于 我的代码是这样

Try 
     File.OpenText(TextBox1.Text) 
    Catch ex As Exception 
     MsgBox(ex.Message) 
     Exit Sub 
    End Try 

    Dim line As String = String.Empty 
    Dim OldLine As String = String.Empty 
    Dim sr = File.OpenText(TextBox1.Text) 

    line = sr.ReadLine 
    OldLine = line 

    Do While sr.Peek <> -1 
     Application.DoEvents() 
     line = sr.ReadLine 
     If OldLine <> line Then 
       My.Computer.FileSystem.WriteAllText(My.Computer.FileSystem.SpecialDirectories.Desktop & "\Splitted File without Repeats.txt", line & vbCrLf, True) 
     End If 

     OldLine = line 
    Loop 


    sr.Close() 
    System.Diagnostics.Process.Start(My.Computer.FileSystem.SpecialDirectories.Desktop & "\Splitted File without Repeats.txt") 
    MsgBox("Loop terminated. Stream Reader Closed." & vbCrLf) 

Answer 1

您可以使用LINQ的Distinct()方法这一点。

这将为小文件的工作：

Dim lines As String() = File.ReadAllLines("yourfile.txt") 
File.WriteAllLines("yourfile.txt", lines.Distinct().ToArray())