EFEntities ef = new EFEntities();
            var ss = from i in ef.视图固定资产转移信息
                     group i by i.申请时间.Year
                         into g
                         select new { count = g.Count(), year = g.Key };
            StringBuilder sb = new StringBuilder();
            foreach (var item in ss)
            {
                sb.AppendLine("年份"+item.year+"数量:"+item.count);  
            }
            Response.Write(sb.ToString());

 var data = from pre in ef.PreSale 
                       where pre.StudentID == 1
                       group pre by pre.Date.Month into dateGroup
                       select new
                       {
                           Date = dateGroup.Select(x => x.Date).FirstOrDefault(),
                           Month = dateGroup.Key,
                           SaleCount = dateGroup.Sum(x => x.SaleCount)
                       };
            foreach (var v in data)
            {
                var date = v.Date;
                var month = v.Month;
                var saleCount = v.SaleCount;
            }