C# Lambda
1、排序 OrderByDescending()降序 OrderBy升序
List<myParam> mylist = List.OrderByDescending(p => p.time).ToList();
2、取n条连续记录
Skip(2)：跳过前面2条记录 Take(5):取5条记录
List<myParam> mylist = List.Skip(2).Take(5).ToList();
