C# 文件流操作 之 删除、复制、转移多个文件

 string[] format = { "*.jpg", "*.doc", "*.exe", "*.pdf", "*.xls" };C# 文件流操作 之 删除、复制、转移多个文件       /// <summary>        /// 删除文件夹下面所有图片        /// </summary>        /// <param name="oldpngPath">待删除文件路径</param>        /// <param name="newpngPath">删除到的新目录</param>        /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>        public void deleteAll(string delpath, string format )        {            string[] files = Directory.GetFiles(delpath, format[0]);            foreach (string file in files)            {                File.Delete(file);            }        }        /// <summary>        /// 复制文件夹下面所有图片        /// </summary>        /// <param name="oldpngPath">待复制文件路径</param>        /// <param name="newpngPath">复制到的新目录</param>        /// <param name="geshi">操作文件的格式 例如:*.png、*.xml</param>        public void copyALl(string oldpngPath, string newpngPath, string format )        {            string[] files = Directory.GetFiles(oldpngPath, format[0]);            foreach (string file in files)            {                string otherFile = Path.Combine(oldpngPath, Path.GetFileName(file));                File.Copy(file, newpngPath + "\\" + Path.GetFileName(file));            }        }       /// <summary>        /// 移动文件夹下的所有文件        /// </summary>        /// <param name="olderpath">待移动的文件目录</param>        /// <param name="topath">新目录</param>        public void moveAll(string olderpath, string topath)        {            string[] files = Directory.GetFiles(delpath, format[0]);            foreach (string file in files)            {                File.Move(file, topath); //移动文件            }        }