/// <summary>

 /// 保存缩略图

 /// </summary>

 /// <param name="file">用户上传的文件</param>

 /// <param name="fileName">想要保存的文件名</param>

 /// <param name="uploadPath">上传地址</param>

 /// <returns></returns>

 private bool SaveThumbFile(HttpPostedFileBase file, string fileName, string uploadPath, int postId)

 {

   try

   {

       var thumbImage = new WebImage(file.InputStream);

       thumbImage.Resize(, );

       var thumbPath = Path.Combine(Server.MapPath("~/Content/uploads/Images/Thumb"),

           fileName);

       thumbImage.Save(thumbPath);

       return true;

   }

   catch

   {

       return false;

   }

 }