Select n objects from collection based on ranked value

Question

public class A
{
   public int x { get; set; }
}

Then somewhere, a collection:

public List<A> aList { get; set; }

Now, how to select n objects of this list based on highest x values?

Answer 1

LINQ怎么样：

var bestAs = aList.OrderByDescending(a => a.x).Take(n);