将用户相册图片拷贝一份到DZ，并生成原图的缩略图

using (SqlDataReader sdr2 = cmd.ExecuteReader())
{
    Image.GetThumbnailImageAbort myCallback = new Image.GetThumbnailImageAbort(()=>{return false;});
    Image srcImg = null;
    while (sdr2.Read())
    {
        dir = sdr2["dir"].ToString() + "\\";
        imgFile = sdr2["FileName"].ToString() + "." + sdr2["FileExt"].ToString();
        if (File.Exists(oldImgPath + dir + imgFile))
        {
            //新照片存放路径
            if (!Directory.Exists(newPhotoPath + dir))
            {
                Directory.CreateDirectory(newPhotoPath + dir);
            }
            try
            {
                File.Copy(oldImgPath + dir + imgFile, newPhotoPath + dir + imgFile);//原图
                //缩略图
                srcImg= System.Drawing.Image.FromFile(oldImgPath + dir + imgFile);
                srcImg.GetThumbnailImage(140, 140 * srcImg.Height / srcImg.Width, myCallback, IntPtr.Zero).Save(newPhotoPath + dir + imgFile + ".thumb.jpg");
            }
            catch{}
        }
    }
    srcImg.Dispose();
}

 

GDI实在不怎么样，从MSDN上看方法拷下来的，有人能指出哪里可优化吗？！！