我想用vb.net对文本文件的第一行和最后一行进行删除，该如何写

如上

Public Class Form1 Dim lst As New List(Of String) REM 从文本读取内容 Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load Dim s As New StreamReader("D:\123.txt") Dim arrs As String() = s.ReadToEnd.Split(vbCrLf) lst = arrs.ToList s.Close() End Sub REM 将内容添加至List(of String),修改时直接先修改list Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click For Each x As String In lst If x = TextBox1.Text Then lst.Remove(x) : Exit Sub Next MsgBox("没有这个内容") End Sub REM 修改完成后写入文本 Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click Dim r As New StreamWriter("D:\123.txt") r.AutoFlush = True For Each x As String In lst r.WriteLine(x) Next r.Close() End Sub End Class

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