C # saves a binary string to a local

C # saves a binary string to a local

  #region Save the file to local///<summary>///Save the file to local///</summary>//<param name= "p Scontent "> Binary data string for file </param>//<param name=" psfilename "> file name, must have suffix </param> private v OID SaveFile (String pscontent, String psfilename) {byte[] accessory = convert.frombase64string (Psconten            T); System.AppDomain.CurrentDomain.BaseDirectory gets the base directory of the program string vsaccessorypath = System.AppDomain.CurrentDomain.            Basedirectory.trimend (' \ \ ') + ' \ \ ' + psfilename;            FileStream FileStream = null;                try {//file.create Method (String): Creates or overwrites a File in the specified path.            FileStream = File.create (Vsaccessorypath); } catch (System.IO.IOException e) {}//filestream.write Metho            D:writes a block of bytes to the file stream. FileStream.Write (accessory, 0, accEssory.            Length);            Filestream.flush method: Clears all buffers for the stream so that all buffered data is written to the underlying device.            Filestream.flush ();            Filestream.close method:closes the file and releases any resources associated with the current file stream.        Filestream.close (); } #endregion

If the file stream is stored in the database:

String vssql = "";//Gets the contents of the saved file to be converted from the database (for example, before converting the file to a byte stream saved to the database) DataSet dscontent = Gets the database operation of the dataset; byte[] Vbcontent = ( Byte[]) (Dscontent.tables[0]. rows[0]["The column name of the file contents in the database"]); string vsContent = Convert.tobase64string (vbcontent);

What the byte stream looks like in the database:

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