/*
     自动文件，若制定目录下文件不存在，则会自动创建该目录及文件
     */
    class AutoFile
    {

        public AutoFile(string directory, string name,string defaultContent)
        {
            if (Regex.IsMatch(name, "/"))
            {
                throw new Exception("文件名中不应有/符号出现");
            }
            if (!Directory.Exists(directory))
            {
                Directory.CreateDirectory(directory);
                File.Create(name);
            }
            _fileName =directory + "/" + name ;
            if (!File.Exists(_fileName))
            {
              var file =  File.Create(_fileName);
                file.Close();
                File.WriteAllText(_fileName,defaultContent);
            }
        }

        
        public void Apped(string str)
        {
            File.AppendAllText(_fileName,str);
        }

        public void AppedLine(string str)
        {
            File.AppendAllLines(_fileName,new String[]{str});
        }
        public string[] ReadAllLines()
        {
            return File.ReadAllLines(_fileName);
        }
        private string _fileName;
        
        public string FileName
        {
            get { return _fileName; }
            private set{ _fileName = value; }
        }
    }