C# 去除utf-8 BOM头

static void Main(string[] args)
{var a1= Encoding.UTF8.GetBytes("<");var a2 = Encoding.UTF8.GetBytes("<");Console.WriteLine("去除utf-8 bom之前");Console.WriteLine(Encoding.UTF8.GetString(a1));Console.WriteLine(Encoding.UTF8.GetString(a2));//如果是utf-8 BOM则去除utf-8 bom头if (a2.Length >= 3&& a2[0] == 239 && a2[1] == 187 && a2[2] == 191){var a2Tmp = a2.ToList();a2Tmp.RemoveRange(0, 3);a2 = a2Tmp.ToArray();}Console.WriteLine("去除utf-8 bom之后");Console.WriteLine(Encoding.UTF8.GetString(a1));Console.WriteLine(Encoding.UTF8.GetString(a2));
}