文件解压缩，删除文件，创建文件，读取xml文件为json字符串，得到相对路径下的图片名称

 /// <summary>
        /// 读取xml文件为json字符串
        /// </summary>
        /// <param name="path">xml的路径</param>
        /// <returns>返回的json字符串</returns>
        public static String Readxml(String path)
        {
            XmlDocument doc = new XmlDocument();
            doc.Load(path);
            string jsonText = JsonConvert.SerializeXmlNode(doc).Replace("@", "");
            var model = jsonText.Remove(0, 45);
            var module = model.Substring(0, model.Length - 1);
            return module;
        }

 /// <summary>
        /// 为模块新类型创建文件夹
        /// </summary>
        /// <param name="FileName">文件名</param>
        /// <param name="path">默认路径</param>
        /// <returns></returns>
        public static Boolean CreateFiles(String FileName, String path = @"..\..\Content\modules")
        {
            Boolean result = false;
            String newPath = Path.Combine(HttpContext.Current.Server.MapPath(path), FileName);//拼接路径
            if (!Directory.Exists(newPath))//判断目录下是否存在同名文件夹
            {
                try
                {
                    Directory.CreateDirectory(newPath);//创建文件夹
                    result = true;
                }
                catch (Exception)
                {
                    throw;
                }
            }
            return result;
        }

 /// <summary>
        /// 解zip压缩方法
        /// </summary>
        /// <param name="path">压缩文件的相对路径</param>
        /// <returns></returns>
        public static Boolean Decompression(String path)
        {
            Boolean isTrue = false;
            try
            {   //必须使用using不然解压完线程依旧占用zip文件，无法删除。O(∩_∩)O哈哈~
                using (ZipFile zip = ZipFile.Read(path))
                {
                    foreach (ZipEntry z in zip)
                    {
                        z.Extract(path.Substring(0, path.Length - 4), ExtractExistingFileAction.OverwriteSilently);
                    }
                    isTrue = true;
                }
            }
            catch (Exception)
            {
                throw;
            }
            return isTrue;
        }

 /// <summary>
        /// 删除指定路径下的文件
        /// </summary>
        /// <param name="path">删除文件的路径【绝对】</param>
        /// <returns></returns>
        public static Boolean DeleteFile(String path)
        {
            Boolean isTrue = false;

            FileAttributes attr = File.GetAttributes(path);//判断是文件还是文件夹
            if (attr == FileAttributes.Directory)
            {
                if (!File.Exists(path))///判断路径是否存在
                {   //删除文件夹
                    Directory.Delete(path, true);
                    isTrue = true;
                }
            }
            else
            {
                if (File.Exists(path))
                {   //删除文件
                    File.Delete(path);
                    isTrue = true;
                }
            }
           
            return isTrue;
        }

 /// <summary>
        /// 根据文件夹的路径得到文件夹下面的图片名
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static String GetImgName(String path)
        {
            //Todo 用于解压缩后得到其中的图片格式和图片名
            string name = "";
            DirectoryInfo di = new DirectoryInfo(path);//找到图片所在的路径
            FileInfo[] fiArray = di.GetFiles();      //读取该路径下所有文件           
            foreach (FileInfo fi in fiArray)
            {
                string fileType = fi.Name.Substring(fi.Name.LastIndexOf(".") + 1);//取后缀名
                if (fileType == "png" || fileType == "jpg" || fileType == "gif" || fileType == "jpeg" || fileType == "bmp")//筛选图片格式
                {
                    name =  fi.Name;
                }
            }
            return name;
        }