/// <summary>
        /// 刪除過期的儲存圖片
        /// </summary>
        public void DeleteOTImg(string path)
        {
            try
            {
                DirectoryInfo theFolder = new DirectoryInfo(path);
                DirectoryInfo[] dirInfo = theFolder.GetDirectories();
                DateTime dtNow = DateTime.Now;
                int
 
 saveDay = Convert.ToInt32(ConfigOperator.Single().StrSaveDays);
                //遍歷資料夾
                foreach (DirectoryInfo NextFolder in dirInfo)
                {
                    //直接刪除資料夾以及檔案
                    /*TimeSpan ts = dtNow.Subtract(NextFolder.LastWriteTime);
                    if (ts.TotalDays > saveDay)//超過了儲存時間，刪除檔案
                    {
                        NextFolder.Delete(true);
                    }*/
 

                    FileInfo[] fileInfo = NextFolder.GetFiles("*.jpg", SearchOption.AllDirectories);
                    foreach (FileInfo tmpfi in fileInfo) //遍歷檔案
                    {
                        TimeSpan ts = dtNow.Subtract(tmpfi.LastWriteTime);
                        if (ts.TotalDays > saveDay)//超過了儲存時間，刪除檔案
 

                        {
                            tmpfi.Delete();
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Trace.WriteLine(ex.Message);
            }
        }