编写文本文件如何强制ANSI格式C#

Question

使用以下命令尝试用ANSI编写文本文件，但打开时仍显示UTF-8。如何用ANSI格式书写？这是在Windows 10上。在记事本++或记事本右下角，当我打开不同的文本文件时，它会显示ANSI或UTF-8。我的程序生成的一个是UTF-8。

private void createHeader()
{
StringBuilder sb = new StringBuilder();
string delimiter = "ª";
sb.Append(batchNumber);
sb.Append(delimiter);
sb.Append("Delete PLUs");
sb.Append(delimiter);
string today = DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss tt");
//Console.WriteLine(today);
sb.Append(today);
for (int i =0; i < 15; i++)
{
sb.Append(delimiter);
}
sb.Append(Environment.NewLine);
Console.WriteLine(sb.ToString());
System.IO.StreamWriter objWriter;
objWriter = new System.IO.StreamWriter(new FileStream(pathToFile, FileMode.OpenOrCreate), Encoding.ASCII);
objWriter.WriteLine(sb.ToString());
objWriter.Close();
//System.IO.File.WriteAllText(pathToFile, sb.ToString(), Encoding.ASCII); // Erases current file and overwrite
//return sb.ToString();
}

Answer 1

使用编码1252。

using (TextWriter tw = new StreamWriter(pathToFile, true, Encoding.GetEncoding(1252)))
{
tw.WriteLine(sb.ToString());
}