Use of FileStream files, filestream files

Use of FileStream files, filestream files

// FileStream // (for byte operations) a spoonful of water and a spoonful of files that can be operated in any format
// File is read at once

// Read text files

1 // FileMode. openOrCreate what operations do you perform on files? 2 // FileAccess. read File data parameter 3 // 1. create a FileStream object 4 FileStream fileRead = new FileStream (@ "C: \ Users \ wbrm \ Desktop \ new FileStream file .txt", FileMode. openOrCreate, FileAccess. read); 5 byte [] buffer = new byte [1024*1024*5]; 6 int r = fileRead. read (buffer, 0, buffer. length); // 0 indicates that the data is read from that byte // buffer. length Size 7 // decodes the encoded format of each element in the byte array into a string 8 string s = Encoding. default. getString (buffer, 0, r); 9 fileRead. close (); // Close stream 10 fileRead. dispose (); // release the resources occupied by the stream 11 Console. writeLine (s); 12 Console. readKey ();

Write a text file

1 // The written encoding format must be the same as the read encoding format. 2 // process the created file stream object in Using, it will automatically help us release the space occupied by 3 using (FileStream fswrite = new FileStream (@ "C: \ Users \ wbrm \ Desktop \ new Text Document (2).txt", FileMode. openOrCreate, FileAccess. write) 4 {5 string str = "check if I have overwritten you"; 6 byte [] buffer = Encoding. default. getBytes (str); // convert to a byte array 7 fswrite. write (buffer, 0, buffer. length); 8} 9 Console. writeLine ("successfully written"); 10 Console. readKey ();

Use File streams to replicate multimedia files

1 static void Main (string [] args) 2 {3 // train of thought: read the multimedia file to be copied first and then write it to your specified location 4 string courece = @ "C: \ Users \ wbrm \ Desktop \ for loop exercises. avi "; 5 string target = @" C: \ Users \ wbrm \ Desktop \ new. avi "; 6 CopyFile (courece, target); 7 Console. writeLine ("copied"); 8 Console. readKey (); 9} 10 public static void CopyFile (string courece, string target) 11 {12 // read stream 13 using (FileStream fsRead = new FileStream (courece, FileMode. openOrCreate, FileAccess. read) 14 {15 // write stream 16 using (FileStream fsWrite = new FileStream (target, FileMode. openOrCreate, FileAccess. write) 17 {18 byte [] buffer = new byte [1024*1024*5]; 19 // because the file may be large, when we read, read 20 while (true) 21 {22 // return the number of bytes actually read this time 23 int r = fsRead. read (buffer, 0, buffer. length); 24 // if 0 is returned, it means nothing is read. 25 if (r = 0) 26 {27 break; 28} 29 fsWrite is read. write (buffer, 0, r); // The maximum number of written bytes r30} 31} 32} 33}