/// 
        /// GB2312转换成UTF8        /// 
        ///         /// 
             public static string gb2312_utf8(string text)        {            //声明字符集               System.Text.Encoding utf8, gb2312;            //gb2312               gb2312 = System.Text.Encoding.GetEncoding("gb2312");            //utf8               utf8 = System.Text.Encoding.GetEncoding("utf-8");            byte[] gb;            gb = gb2312.GetBytes(text);            gb = System.Text.Encoding.Convert(gb2312, utf8, gb);            //返回转换后的字符               return utf8.GetString(gb);        }        /// 
        /// UTF8转换成GB2312        /// 
        ///         /// 
             public static string utf8_gb2312(string text)        {            //声明字符集               System.Text.Encoding utf8, gb2312;            //utf8               utf8 = System.Text.Encoding.GetEncoding("utf-8");            //gb2312               gb2312 = System.Text.Encoding.GetEncoding("gb2312");            byte[] utf;            utf = utf8.GetBytes(text);            utf = System.Text.Encoding.Convert(utf8, gb2312, utf);            //返回转换后的字符               return gb2312.GetString(utf);        }