C # using the FileInfo class to implement the method of copying files

The example described in this paper is the method of using FileInfo class to implement copy file in C #, in which C # first creates a StreamWriter object writer, which appends text to the file represented by the FileInfo instance srcfile, FileInfo method to implement a copy of the file.

The specific implementation code is as follows:

Using system;using system.io;namespace Copy file {class Class1 {[STAThread] static void Main (string[] args) {  FileInfo src File = new FileInfo (@ "E:\Temp\src.txt");  Creates a StreamWriter object writer, which appends text to the file represented by the FileInfo instance srcfile.  StreamWriter writer = Srcfile.appendtext ();  Writer. WriteLine ("Copy of this example implementation file");  Cleans up all buffers for the current writer and writes all buffered data to the underlying stream  writer. Flush ();  Writer. Close ();  Create StreamReader  StreamReader reader = Srcfile.opentext () that uses UTF8 encoding to read from an existing text file;  Console.WriteLine ("Source file is:");  The Peek method returns the next available character and returns a non-negative integer while (reader) if the available characters exist  . Peek () >= 0)  {  Console.WriteLine (reader). ReadLine ());  }  FileInfo desfile = new FileInfo ("E:\\temp\\des.txt");  The CopyTo method of the FileInfo class, which implements a copy of the file  FileInfo hello = Srcfile.copyto ("E:\\temp\\des.txt", true);  reader = Desfile.opentext ();  Console.WriteLine ("Copy after copy is:");  while (reader. Peek () >= 0)  {  Console.WriteLine (reader). ReadLine ());  }  Reader. Close (); } }}