public static void FiltPicture(WStatus status)
        {
            if (status.retweeted_status != null && PreferenceHelper.GetPreference("Global_NeedFetchImageInRetweet") != "False")
            {
                FiltPicture(status.retweeted_status);
            }
            if (string.IsNullOrEmpty(status.thumbnail_pic))
            {
                return;
            }
            PictureItem picItem = new PictureItem();
            picItem.Url = MiscTool.MakeFriendlyImageURL(status.bmiddle_pic);
            picItem.FullUrl = MiscTool.MakeFriendlyImageURL(status.original_pic);
            picItem.Id = status.id;
            picItem.Type = EntryType.SinaWeibo;
            picItem.Title = status.user.name;
            picItem.Content = status.text;
            picItem.TimeObject = status.CreatedAt;

            // 之所以要检测两次是因为如果是gif,在这里也会被赋为空值
            if (string.IsNullOrEmpty(picItem.Url))
            {
                return;
            }

            App.ViewModel.SinaWeiboPicItems.Add(picItem);
        }