C ＃ read and write txt files

        //  Write configuration information into the text         
        public void WriteConfigToTxt(int times, int days, string delPath)
        {
            try
            {
                string user = Environment.GetFolderPath(Environment.SpecialFolder.Templates);
                string configPath = user + "\\ConfigFile";
                //string logPath = "c:\\LogFile";
                // Judge whether the folder under this path exists , Create a new folder if it does not exist 
                if (!Directory.Exists(configPath))
                {
                    Directory.CreateDirectory(configPath);
                }
                // Specifies the directory for the log files 
                string fname = configPath + "\\ConfigFile.txt";

                // Clear the text first 
                System.IO.File.WriteAllText(fname, string.Empty);

                // Define file information objects 
                FileInfo finfo = new FileInfo(fname);

                if (!finfo.Exists)
                {
                    FileStream fs;
                    fs = File.Create(fname);
                    fs.Close();
                    finfo = new FileInfo(fname);
                }

                // Create a write only file stream 
                using (FileStream fs = finfo.OpenWrite())
                {
                    // Create a write data stream based on the file stream created above 
                    StreamWriter w = new StreamWriter(fs);

                    // Set the start position of the write data stream to the end of the file stream 
                    w.BaseStream.Seek(0, SeekOrigin.End);

                    // Write content 
                    w.Write(times.ToString() + "\n" + days + "\n" + delPath + "\n\r");

                    // Empty buffer contents , And write the contents of the buffer to the underlying stream 
                    w.Flush();

                    // Close the write data stream 
                    w.Close();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                throw;
            }
        }


        // Read txt file , And return the contents of the file 
        public string ReadTxTContent()
        {
            try
            {
                string user = Environment.GetFolderPath(Environment.SpecialFolder.Templates);                
                string contentPath = user + "\\ConfigFile";
                if (Directory.Exists(contentPath))
                {
                    string strCon = string.Empty;
                    //  Create a  StreamReader  To read the file 
                    // using  Statements can also be closed  StreamReader
                    contentPath = contentPath + "\\ConfigFile.txt";
                    using (StreamReader sr = new StreamReader(contentPath))
                    {
                        string line;
                        //  Read from file and display lines , To the end of the file  
                        while ((line = sr.ReadLine()) != null)
                        {
                            strCon += line + " ";
                        }
                    }
                    return strCon;
                }
                return null;
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                return null;
            }
        }