VB.net 文件读取、写入、追加操作

Dim PathUserData As String = Application.StartupPath & "\实操统计sql.txt"
TextTB.Text = System.IO.File.ReadAllText(PathUserData)
‘或者用 System.IO.File.ReadAllText(PathUserData, System.Text.Encoding.UTF8)
上面这个是读取
System.IO.File.ReadAllText(PathUserData, System.Text.Encoding.UTF8)   此用法是把编码方式转为UTF8

写入如下：

Dim PathUserData As String = Application.StartupPath & "\实操统计sql.txt"
Dim t As System.IO.StreamWriter = New System.IO.StreamWriter(PathUserData, True, System.Text.Encoding.UTF8)
t.Write(TextTB.Text)
t.Close()
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追加如下：

Dim PathUserData As String = Application.StartupPath & “\实操统计sql.txt”
Dim t As System.IO.StreamWriter = New System.IO.StreamWriter(PathUserData, True, System.Text.Encoding.UTF8)
t.WriteLine(TextTB.Text)
t.Close()

同样的，你可vb.net教程以把

System.Text.Encoding.UTF8
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