C # Read and write files

The following is a class using system;using system.collections.generic;using system.linq;using that reads and writes files system.text;using System.threading.tasks;using System.io;namespace writeread{class Filec {#region Write to File. Params:path and content public static void Writefilestream (string path,string content) {byte []            Date=system.text.encoding.default.getbytes (content);                try {FileStream file = new FileStream (path, filemode.append); File. Write (date, 0, date.                Length); File.                Flush (); File.            Close ();            } catch (Exception) {throw; }/* First create the file using FileStream and then write the file using Streanwrite * */public static void Writestreamwrite (string path, string content) {try {FileStream file = n                EW FileStream (path, filemode.append); Create a StreamwriTe instance is input StreamWriter sw = new StreamWriter (file); Write to file SW.                Write (content); Closes the buffer. Writes the data in the buffer to the file SW.                Flush (); Sw.                Close (); File.            Close ();            } catch (Exception) {throw; }/* * Use bianary Write file * Write file in binary form */public static void Writebinarywriter (ST Ring path, string content) {try {FileStream file = new FileStream (Path,filem Ode.                Append);                BinaryWriter bw = new BinaryWriter (file); Bw.                Write (content); Bw.                Flush (); Bw.            Close ();            } catch (Exception) {throw;        }} #endregion #region read from file params:path/* * reads files with FileStream return byte[] */ public static byte[] ReaDfile (string path) {byte[] data;               The try {//filestream constructor has 14 overloads, which is what is commonly used, and the following permission to read and write. FileStream file1=new FileStream (Path, filemode.open,fileaccess.readwrite) FileStream file = new Filestr                EAM (path, FileMode.Open); data = new Byte[file.                Length]; File. Read (data, 0, data.                Length); File.                Close ();            return data;                } catch (Exception) {return null;            Throw  }/* * Read file in byte stream * Use StreamReader to read file return byte[] */public static string Readstreamreader (String path) {string data=string.            Empty;                try {FileStream file = new FileStream (path, FileMode.Open); File.                Seek (0, Seekorigin.begin);                StreamReader sr = new StreamReader (file); String STRPREm=string.                Empty; while ((STRPREM=SR.                ReadLine ())!=null) {data + = Strprem; } Sr.                Close (); File.                Close ();            return data;                } catch (Exception) {return null;            Throw  }/* * Read the file in binary mode * Use BinaryReader to read the file return byte[] */public static byte[] Readbinaryreader (string path) {try {FileStream file = new FileStream (path,                FileMode.Open); File.                Seek (0, Seekorigin.begin);                Generally use binary mode to read the file, because unrestricted, what type of file can be read in BinaryReader br = new BinaryReader (file); byte [] data=new byte [file.                Length]; Br. Read (data, 0, data.                Length); Br.                Close (); File.                Close ();            return data;        } catch (Exception) {        return null;            Throw }} #endregion}}

Here is the main program for the test class:

Using system;using system.collections.generic;using system.linq;using system.text;using System.Threading.Tasks; Namespace writeread{class Program {static void Main (string[] args) {//testfilestreamwrit            E ();            Teststreamwriter ();           Testbinarywriter (); Console.WriteLine ("Write success!           ");           Testread ();            Teststreamreader ();            Testbinaryreader ();                     Console.readkey ();            } #region Test read from the file public static void Testread () {String strpath = "E:\\t.txt";            byte[] data = Filec.readfile (strpath);            String strcontent = System.Text.Encoding.Default.GetString (data);        Console.WriteLine (strcontent);                        } public static void Teststreamreader () {String strpath = "E:\\t.txt";        Console.WriteLine (Filec.readstreamreader (strpath)); } public static void TestbiNaryreader () {String strpath = "E:\\t.txt";            byte[] data = Filec.readbinaryreader (strpath);            String strcontent = System.Text.Encoding.Default.GetString (data);            Console.WriteLine (strcontent);        Console.WriteLine (); } #endregion #region Test Write Class public static void Testfilestreamwrite () {s            Tring Strcontent = "This is a TXT document";            String strpath= "E:\\t.txt";        Filec.writefilestream (strpath, strcontent); } public static void Teststreamwriter () {String strcontent = ' This is a teststreamwriter documen            T ";            String strpath = "E:\\t.txt";        Filec.writestreamwrite (strpath, strcontent); } public static void Testbinarywriter () {String strcontent = ' This is a testbinarywriter documen            T ";            String strpath = "E:\\t.txt"; Filec.writebinarywriter (strpath, strcontent);        } #endregion}} 

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C # Read and write files