How to copy C # large files

How to copy read large files, perhaps confused a lot of people for a long time, this do not know how to do, it really makes people have a headache to crack, know that you just found that the original so simple, words do not say, straight into the ""

Static voidMain (string[] args) {            BOOLB= CopyFile (@"D:\360 Secure Browser Download \2.avi",@"D:\360 Secure Browser Download \3.avi"); if(b) {Console.WriteLine ("Replication succeeded"); }            Else{Console.WriteLine ("Replication Failed");        } console.readkey (); }        /// <summary>        ///Large file multiple copies file true: Copy succeeded false: Replication failed/// </summary>        /// <param name= "Soucrepath" >Original file path</param>        /// <param name= "TargetPath" >Copy destination file path</param>        /// <returns></returns>         Public Static BOOLCopyFile (stringSoucrepath,stringTargetPath) {            Try            {                //read the copy file stream                using(FileStream fsread =NewFileStream (Soucrepath, FileMode.Open, FileAccess.Read)) {                    //Write file copy stream                    using(FileStream fswrite =NewFileStream (TargetPath, FileMode.OpenOrCreate, FileAccess.Write)) {                        byte[] buffer =New byte[1024x768*1024x768*2];//2M per read//may be large file, to loop read, each read 2M                         while(true)                        {                            //data per read N: The actual data size to be read every time                            intn = fsread.read (buffer,0, buffer.                            Count ()); //If the n=0 indicates that the read data is empty, it has been read to the last, jumping out of the loop                            if(n = =0)                            {                                 Break; }                            //actual data size to write per readFswrite.write (Buffer,0, N); }                    }                }                return true; }            Catch(System.Exception ex) {return false; }                    }

is actually a method CopyFile (), call this method can be ...

How to copy C # large files