Working with Files: Take Two
While the use of StreamReader
and StreamWriter
is great to deal with text files, they fall short in providing byte-level access to a file. Other methods on the File
class used to open or create files expose FileStream
objects, which allow for richer manipulation of the data contained in a file. For example:
using (FileStream fs = File.OpenRead(@"c:\windows\system32\notepad.exe")){ var m = (char)fs.ReadByte(); var z = (char)fs.ReadByte(); Console.WriteLine("{0}{1}", m, z);}
This trivial example shows how to obtain a FileStream
object that can read from the specified file. It uses the ReadByte
method two times to read the first 2 bytes of an executable file, which are always MZ, ...
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