public IQueryable<OfficeToolList> GetMessage(OfficeToolList offID)
        {
            DALDataContext MyCon = DAL_Connection.Connection;
            var linq = from i in MyCon.OfficeToolList
                       where i.ToolID == offID.ToolID
                       select new
                       {
                           softID=i.ToolID,
                           softTypeID=i.ToolClassID,
                           softUrl=i.FileURL,
                           softDownUrl=i.DownloadPageURL,
                           softName=i.ToolName,
                           softEdition=i.Vision,
                           softSize=i.FileLenght,
                           softFormat=i.Type,
                           softDownTime=(from ii in MyCon.DownloadLog where ii.ToolID==offID.ToolID select ii).Count(),
                           softDataTime=i.PublishDate
                       };
            foreach (var item in linq)
            {
                OfficeChannel.Model.Tips_M_ToolList model = new OfficeChannel.Model.Tips_M_ToolList();
                model.ToolName = item.softName;
                model.Vision = item.softEdition;
                model.FileLenght = Convert.ToInt32(item.softSize);
                model.Type = item.softFormat;
                model.PublishDate = Convert.ToString(item.softDataTime);
                model.count = item.softDownTime;
                model.ToolID = item.softID;
                model.ToolClassID = new Guid(Convert.ToString(item.softTypeID));
                model.FileURL = item.softUrl;
                model.DownloadPageURL = item.softDownUrl;
            }
            return linq;//错误在这 转化成什么类型呢?
        }