exec sp_MSForEachTable 'sp_changeobjectowner ''?'', ''dbo'''

    public class HexCode
    {
        /// <summary>
        /// 从汉字转换到16进制
        /// </summary>
        /// <param name="s"></param>
        /// <param name="charset">编码,如"utf-8","gb2312"</param>
        /// <param name="fenge">是否每字符用逗号分隔</param>
        /// <returns></returns>
        public static string ToHex(string s, string charset, bool fenge)
        {
            if ((s.Length % 2) != 0)
            {
                s += " ";//空格
                //throw new ArgumentException("s is not valid chinese string!");
            }

            System.Text.Encoding chs = System.Text.Encoding.GetEncoding(charset);

            byte[] bytes = chs.GetBytes(s);

            string str = "";

            for (int i = 0; i < bytes.Length; i++)
            {
                str += string.Format("{0:X}", bytes[i]);
                if (fenge && (i != bytes.Length - 1))
                {
                    str += string.Format("{0}", ",");
                }
            }

            return str.ToLower();
        }

        /// <summary>
        /// 从16进制转换成汉字
        /// </summary>
        /// <param name="hex"></param>
        /// <param name="charset">编码,如"utf-8","gb2312"</param>
        /// <returns></returns>
        public static string UnHex(string hex, string charset)
        {
            if (hex == null)
                throw new ArgumentNullException("hex");
            hex = hex.Replace(",", "");
            hex = hex.Replace("\n", "");
            hex = hex.Replace("\\", "");
            hex = hex.Replace(" ", "");
            if (hex.Length % 2 != 0)
            {
                hex += "20";//空格
                //throw new ArgumentException("hex is not a valid number!", "hex");
            }
            // 需要将 hex 转换成 byte 数组。
            byte[] bytes = new byte[hex.Length / 2];

            for (int i = 0; i < bytes.Length; i++)
            {
                try
                {
                    // 每两个字符是一个 byte。
                    bytes[i] = byte.Parse(hex.Substring(i * 2, 2),
                    System.Globalization.NumberStyles.HexNumber);
                }
                catch
                {
                    // Rethrow an exception with custom message.
                    throw new ArgumentException("hex is not a valid hex number!", "hex");
                }
            }

            System.Text.Encoding chs = System.Text.Encoding.GetEncoding(charset);


            return chs.GetString(bytes);
        }
    }

       private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog fileDialog = new OpenFileDialog();
            fileDialog.Filter = "文本文件(*.txt)|*.txt";
            if ((fileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK))
            {
                this.textBox1.Text = fileDialog.FileName;
            }
        }