#region 數據去重復
var reslut = new List<string>(); 需要去重的數據集合
if (!string.IsNullOrEmpty(query.First().MergeOrders))//滿足去重條件
{
List<string> oldRecordList = GetOldDT(iQueryId);//去重的對比數據
//Linq 的 Except 方法去重
reslut = (from a in newUserRecordList
select a).Except
(from b in oldRecordList
select b).ToList();
}
reslut = reslut.Take(數量).ToList();//獲取需要的數量
#endregion