Comparative FileStream in C # and using method

Scenes

File and FileStream a difference

For example:

Compared to read the file from A to B tub tub water transport.

Use File is the whole buckets poured in, use FileStream is to use the water to slowly transport.

The difference between the FileStream and StreamReader

FileStream operating bytes, i.e., may operate any type of file.

StreamReader is the character of the operation, which can only manipulate text files.

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First create a new txt file.

 

 

Then write a console program

// FileMode.OpenOrCreate: Open file is created there is no open
             // FileAccess.Read: read-only access to the data of 
            the FileStream fsReader = new new the FileStream ( @ " C: \ the Users \ Administrator \ Desktop \ badao.txt " , FileMode.OpenOrCreate, FileAccess.Read);
             // declare 5 megabytes of byte array 
            byte [] Buffer = new new  byte [ 1024 * 1024 * 5 ];
             // return a maximum of 5 megabytes reading r: representative of the actual reading this to the number of valid bytes 
            int R & lt fsReader.Read = (Buffer, 0 , buffer.Length);
             // byte array each element in accordance with the specified string is decoded into an encoding format 
            stringEncoding.Default.GetString = S (Buffer, 0 , R & lt);
             // Close stream 
            fsReader.Close ();
             // release resources occupied 
            fsReader.Dispose (); 
            Console.WriteLine (S); 
            the Console.ReadKey () ;

 

running result