C# 汉子增加UTF-8头

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace ConvertToUtf8
{
    public class ClassFun
    {
        public static byte[] Pathology_ConvertToBinary(string source)
        {
            byte[] utf8Prefix = Encoding.UTF8.GetPreamble();
            byte[] utf8Content = System.Text.Encoding.UTF8.GetBytes(source);
            byte[] NewUtf8Content = new byte[utf8Prefix.Length + utf8Content.Length];
            int NewUtf8ContentCount = ;
            for (int i = ; i < utf8Prefix.Length; i++)
            {
                NewUtf8Content[NewUtf8ContentCount] = utf8Prefix[i];
                NewUtf8ContentCount++;
            }
            for (int j = ; j < utf8Content.Length; j++)
            {
                NewUtf8Content[NewUtf8ContentCount] = utf8Content[j];
                NewUtf8ContentCount++;
            }
 
            return NewUtf8Content;
        }
    }
}