文件路径遍历

private void DeeperDirectory(string path)
        {
            FileSystemInfo[] fsi = new DirectoryInfo(path).GetFileSystemInfos();
            foreach (FileSystemInfo item in fsi)
            {
                if (item is DirectoryInfo)
                {
                    //do somethings
                    //目录
                    DeeperDirectory(item.FullName); 
                }
                else
                {
                    //文件
                    //do somethings
                }
            }
        }