System.Drawing.Bitmap bmp = null; MODIOCR.MODI md = null;bmp = new System.Drawing.Bitmap(tempImage); MODIOCR.MODI md = null;tiffPath = AppDomain.CurrentDomain.BaseDirectory + C_TEMP_Tiff + ".tiff";                image = bmp.GetThumbnailImage((int)width, (int)height, null, IntPtr.Zero);                image.Save(tiffPath, ImageFormat.Tiff);                md.ocr(tiffPath, ayLanguageList);bmp.Dispose();                image.Dispose();                md = null;                GC.Collect();File.Delete(tiffPath)//這句執行出錯：提示文件被另一進城訪問