>>496
こんな感じでどうかしら。

using System;
using System.Text;

class Test
{
  public static void Main() {
    byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

    StringBuilder s = new StringBuilder();

    foreach (byte b in bytes) {
      s.Append(b);
    }

    Console.WriteLine( s.ToString() );
  }
}