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Categories / C# Tutorial / File Directory Stream

 

Use FileStream to write a file by byte array

using System; using System.Windows.Forms; using System.IO; class MainClass {   public static void Main()    {     FileStream inStream = File.OpenRead("C:\\test.txt");     FileStream outStream = File.OpenWrite("C:\\test.txt" + ".bak");     byte[] buf = new byte[4096];     int bytesRead;     while ((bytesRead = inStream.Read(buf, 0, 4096)) > 0)       outStream.Write(buf, 0, bytesRead);     outStream.Flush();     outStream.Close();     inStream.Close();   } }