C# 获取指定目录下所有文件信息、移动目录、拷贝目录

/// <summary>
        /// 返回指定目录下的所有文件信息
        /// </summary>
        /// <param name="strDirectory"></param>
        /// <returns></returns>
        public List<FileInfo> GetAllFilesInDirectory(string strDirectory)
        {
            List<FileInfo> listFiles = new List<FileInfo>(); //保存所有的文件信息  
            DirectoryInfo directory = new DirectoryInfo(strDirectory);
            DirectoryInfo[] directoryArray = directory.GetDirectories();
            FileInfo[] fileInfoArray = directory.GetFiles();
            if (fileInfoArray.Length > 0) listFiles.AddRange(fileInfoArray);
            foreach (DirectoryInfo _directoryInfo in directoryArray)
            {
                DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);
                DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();
                FileInfo[] fileInfoArrayA = directoryA.GetFiles();
                if (fileInfoArrayA.Length > 0) listFiles.AddRange(fileInfoArrayA);
                GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历  
            }
            return listFiles;
        }

/// <summary>
        /// 返回指定目录下的所有文件信息
        /// </summary>
        /// <param name="strDirectory"></param>
        /// <returns></returns>
        public List<FileInfo> GetAllFilesInDirectory(string strDirectory)
        {
            List<FileInfo> listFiles = new List<FileInfo>(); //保存所有的文件信息  
            DirectoryInfo directory = new DirectoryInfo(strDirectory);
            DirectoryInfo[] directoryArray = directory.GetDirectories();
            FileInfo[] fileInfoArray = directory.GetFiles();
            if (fileInfoArray.Length > 0) listFiles.AddRange(fileInfoArray);
            foreach (DirectoryInfo _directoryInfo in directoryArray)
            {
                DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);
                DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();
                FileInfo[] fileInfoArrayA = directoryA.GetFiles();
                if (fileInfoArrayA.Length > 0) listFiles.AddRange(fileInfoArrayA);
                GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历  
            }
            return listFiles;
        }

/// <summary>
        /// 返回指定目录下的所有文件信息
        /// </summary>
        /// <param name="strDirectory"></param>
        /// <returns></returns>
        public List<FileInfo> GetAllFilesInDirectory(string strDirectory)
        {
            List<FileInfo> listFiles = new List<FileInfo>(); //保存所有的文件信息  
            DirectoryInfo directory = new DirectoryInfo(strDirectory);
            DirectoryInfo[] directoryArray = directory.GetDirectories();
            FileInfo[] fileInfoArray = directory.GetFiles();
            if (fileInfoArray.Length > 0) listFiles.AddRange(fileInfoArray);
            foreach (DirectoryInfo _directoryInfo in directoryArray)
            {
                DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);
                DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();
                FileInfo[] fileInfoArrayA = directoryA.GetFiles();
                if (fileInfoArrayA.Length > 0) listFiles.AddRange(fileInfoArrayA);
                GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历  
            }
            return listFiles;
        }