/// <summary>
 /// 保存本地图片
 /// </summary>
 /// <param name="thisBitmapImage"></param>
 /// <param name="thisFilePath"></param>
 /// <returns></returns>
 public static bool WriteImage(this BitmapSource thisBitmapImage, string thisFilePath)
 {
     #region 保存本地图片
     using (var memoryStream = new System.IO.MemoryStream())
     {
         var wp = new WriteableBitmap(thisBitmapImage);
         wp.SaveJpeg(memoryStream, wp.PixelWidth, wp.PixelHeight, 0, 100);
         memoryStream.SaveStream(thisFilePath);
         return(true);
     }
     #endregion
 }
 /// <summary>
 /// 保存本地图片
 /// </summary>
 /// <param name="thisBitmapImage"></param>
 /// <param name="thisFilePath"></param>
 /// <returns></returns>
 public static bool WriteImage(this BitmapSource thisBitmapImage, string thisFilePath)
 {
     #region 保存本地图片
     using (var memoryStream = new System.IO.MemoryStream())
     {
         var wp = new WriteableBitmap(thisBitmapImage);
         wp.SaveJpeg(memoryStream, wp.PixelWidth, wp.PixelHeight, 0, 100);
         memoryStream.SaveStream(thisFilePath);
         return true;
     }
     #endregion
 }