private   static   void  ReadStockCodes( string  strPath,  string  p_strMarket)
         {
            FileStream stream = new FileStream(strPath, FileMode.Open, FileAccess.Read);
            BinaryReader b_reader = new BinaryReader(stream);
            SqlCommand cmd = new SqlCommand("", m_conn);
            cmd.Transaction = m_tran;
            cmd.CommandText = "insert into stockinfos ([StockCode] ,[Market] ,[StockName], [IsIndex]) " +
                "VALUES (@StockCode,@Market,@StockName, @IsIndex)";
            cmd.Parameters.Add("@StockCode", SqlDbType.NChar, 6);
            cmd.Parameters.Add("@Market", SqlDbType.NVarChar, 10);
            cmd.Parameters.Add("@StockName", SqlDbType.NVarChar, 20);
            cmd.Parameters.Add("@IsIndex", SqlDbType.Bit);
            try
            {
                while (stream.CanRead)
                {
                    int nIndex = b_reader.ReadInt32();
                    string strCode = GetString(b_reader, 7);
                    int nCnt = 0;
                    List<Byte> endbytes = new List<byte>();
                    endbytes.Add(0);
                    string strName = GetStringTillEnd(b_reader,endbytes, out nCnt);
                    strCode = strCode.Replace('\0', ' ');
                    strName = strName.Replace('\0', ' ');
                    strCode = strCode.Trim();
                    strName = strName.Trim();
                    int n = 0x119;
                    n -= 4 + 7;
                    n -= nCnt;
                    cmd.Parameters[0].Value = strCode;
                    cmd.Parameters[1].Value = p_strMarket;
                    cmd.Parameters[2].Value = strName;
                    int nIsIndex=0;
                    
                    if ((p_strMarket == "SH" && ( strCode.StartsWith("000") || strCode.StartsWith("801"))
                        || 
                        (p_strMarket == "SZ" && ( strCode.StartsWith("399")))
                        ||
                        strName.Contains("指数")))
                    {
                        nIsIndex = 1;
                    }
                    cmd.Parameters[3].Value = nIsIndex;
                    cmd.ExecuteNonQuery();
                    Console.WriteLine("Index={0}, Code={1}, Name={2}, {3}", nIndex, strCode, strName, 
                        nIsIndex==1 ? "指数" : "证券");
                    b_reader.ReadBytes(n);
                }
            }
            catch (EndOfStreamException)
            {
            }
            catch (Exception ex)
            {

                Console.WriteLine(ex.Message);
                throw;
            }
        }

         public   static   string  GetString(BinaryReader m_reader,  int  p_nLength)
         {
            Encoding mbcs = Encoding.GetEncoding(936);
            Encoding unicode = Encoding.Unicode;

            byte[] byteBuffer = m_reader.ReadBytes(p_nLength);
            byte[] unicodBytes = Encoding.Convert(mbcs, unicode, byteBuffer);
            char[] buffer;// = new char[unicode.GetCharCount(unicodBytes)];
            buffer = unicode.GetChars(unicodBytes);
            // char[] buffer = m_reader.ReadChars(p_nLength);
            string str = new string(buffer);
            str = str.Replace('\x3', '\x20');
            return str.Trim();
        }
         public   static   string  GetStringTillEnd(BinaryReader m_reader, List < byte >  p_endchars,  out   int  p_nLength)
         {
            Encoding mbcs = Encoding.GetEncoding(936);
            Encoding unicode = Encoding.Unicode;
            p_nLength = 0;
            byte[] byteBuffer_0 = new byte[1024];
            byte b;
            do
            {
                b = m_reader.ReadByte();
                p_nLength++;
                byteBuffer_0[p_nLength - 1] = b;
            }
            while (!p_endchars.Contains(b));

            //byteBuffer = m_reader.ReadBytes(p_nLength);
            byte[] byteBuffer= new byte[p_nLength];
            for (int i = 0; i < p_nLength; i++) byteBuffer[i] = byteBuffer_0[i];

            byte[] unicodBytes = Encoding.Convert(mbcs, unicode, byteBuffer);
            char[] buffer;// = new char[unicode.GetCharCount(unicodBytes)];
            buffer = unicode.GetChars(unicodBytes);
            // char[] buffer = m_reader.ReadChars(p_nLength);
            string str = new string(buffer);
            str = str.Replace('\x3', '\x20');
            return str.Trim();
        }