总结Linq或者lamdba的写法

                var head = new OmsEcorderHead
                 {
                     PkEcorderHead = OrderHeadId,
                     AppId = appid,
                     Integral = Convert.ToDecimal(reqdata.Body.Integral.ToString()),
                     ShipIntegral = Convert.ToDecimal(reqdata.Body.ShipIntegral.ToString()),
                     //必填
                     Co = reqdata.Body.CO,
                     Whse = reqdata.Body.WHSE,
                     ReceiptTime = Convert.ToDateTime(reqdata.Body.ReceiptTime.ToString("yyyy-MM-dd HH:mm:ss"))
                 }

                var InvoiceTitle = new string[] { "a", "b", "c", "d ", "e" };
                if (InvoiceTitle.Where<string>(l => l == reqdata.Body.InvoiceTitle.ToLower()).Count() == 0)
                     throw new ECOrderException { ErrorCode = "X1007-01", TransMessage = "传入的InvoiceTitle的值不正确，请修改" };

　　

 将传递过来的一个实体，赋值给一个自己的类， 
 1 var ary = reqdata.Body.Detail.Select(l => new OMSECData.orderDetail
                 { 
 4                     GoodsName = l.GoodsName,
                     GoodsNumber = l.GoodsNumber,
                     GoodsPrice = l.GoodsPrice,
                     TradeIntegral = l.TradeIntegral,
                     ShopMoney = l.ShopMoney,
                     GoodsAmount = l.GoodsAmount，   
                     CreateDateTime = Convert.ToDateTime(DateTime.UtcNow.AddHours())
                 }).ToList();

                   foreach (var item in ary)
                    head.OmsEcorderDetail.Add(item);

 ActionResult result = null;

  var obj = new JObject
                 {
                     {"Head", new JObject
                         {
                             { "TransMessage","" },
                             { "TransCode",transCode },
                             { "TransId", reqdata.Head.TransId },
                             { "ErrorCode", "" }
                         }
                     },
                     {"Body", new JObject
                         {
                             { "CreateDateTime", DateTimeOffset.Now.AddHours().ToUnixTimeSeconds().ToString() }
                         }
                     }
                 };

                 result = new ContentResult()
                 {
                     Content = Newtonsoft.Json.JsonConvert.SerializeObject(obj),
                     ContentType = "application/json"
                 };