/// <summary>
    /// 目录操作类
    /// </summary>
    public class DirectoryHelper
    {
        public DirectoryHelper()
        { }

        /// <summary>
        /// 得到所有磁盘驱动器
        /// </summary>
        /// <returns></returns>
        public string[] AllDrivers()
        {
            return Directory.GetLogicalDrives();
        }

        /// <summary>
        /// 应用程序的当前工作目录，bin文件夹
        /// </summary>
        /// <returns></returns>
        public string CurrentDirectory()
        {
            return Directory.GetCurrentDirectory();
        }

        /// <summary>
        /// 获取path目录下的文件，不包括文件夹
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public string[] AllFiles(string path)
        {
            return Directory.GetFiles(path);
        }

        /// <summary>
        /// 创建一个目录如果directory存在，那么就不创建了目录了
        /// </summary>
        /// <param name="directory"></param>
        public void CreateDirectory(string directory)
        {
            //DirectoryInfo info = new DirectoryInfo(directory);        
            //info.Create();  

            DirectoryInfo info = Directory.CreateDirectory(directory);
        }

        /// <summary>
        /// 删除目录
        /// </summary>
        /// <param name="path"></param>
        public void DeleteDirectory(string path)
        {
            //Directory.Delete(path, false/*删除子目录*/);   //子目录非空则报错。

            Directory.Delete(path, true/*保留子目录*/);  //忽略子目录内容，有没有内容都删除
        }

        /// <summary>
        /// 目录下的所有文件，隐藏文件也可见,偷窥吗？
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public string[] AllContent(string path)
        {
            return Directory.GetFileSystemEntries(path);//如果path不存在则报错
        }

        /// <summary>
        /// 复制文件目录，复制完成原目录删除
        /// </summary>
        /// <param name="path1"></param>
        /// <param name="path2"></param>
        public void CopyDirectory(string sourcePath/*复制前必须存在,复制完成后挂掉了*/,string targetPath/*复制前不能存在*/)
        {
            Directory.Move(sourcePath,targetPath);
        }

        /// <summary>
        /// 编码，说实话我没用过，不知道干吗用.
        /// </summary>
        /// <returns></returns>
        public string Codeing()
        {
            Encoding code = Encoding.Default;
            //byte[] bytes = code.GetBytes("中华人民共和国");    
            byte[] bytes = code.GetBytes("i'm a smart boy");     
            return Encoding.GetEncoding("UTF-8").GetString(bytes);       //doc环境不支持中文吗？中文不能正常转回去，英文就可以。
        }
    }