C # List sort and search with Lambda expression

Sort

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Linq
{

    public class Product
    {

        private string name;
        private int price;


        public Product(int _price,string _name)
        {
            Name = _name;
            Price = _price;
        }
        public string Name
        {
            get
            {
                return name;
            }

            set
            {
                name = value;
            }
        }

        public int Price
        {
            get
            {
                return price;
            }

            set
            {
                price = value;
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {

            List<Product> product = new List<Product>();

            product.Add(new Product(10, "name1"));
            product.Add(new Product(500, "name2"));
            product.Add(new Product(72, "name5"));
            product.Add(new Product(9, "name4"));


            //List<Product> cheapest = product.FindAll(delegate(Product p){ return p.Price < 25 || p.Name.Contains("5"); });




            //  因为sort 方法是 void 类型 所以 直接执行后 product发生改变

//            降序：

//lstroot.Sort((x, y) => y.static_count.CompareTo(x.static_count));

//            升序：

//lstroot.Sort((x, y) => x.static_count.CompareTo(y.static_count));
            product.Sort((x, y) => x.Price.CompareTo(y.Price));


    
            foreach (var ss in product)
            {
                Console.WriteLine(ss.Name+":"+ss.Price);

            }



            Console.ReadKey();
        }
    }
}

search for

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Linq
{

    public class Product
    {

        private string name;
        private int price;


        public Product(int _price,string _name)
        {
            Name = _name;
            Price = _price;
        }
        public string Name
        {
            get
            {
                return name;
            }

            set
            {
                name = value;
            }
        }

        public int Price
        {
            get
            {
                return price;
            }

            set
            {
                price = value;
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {

            List<Product> product = new List<Product>();

            product.Add(new Product(10, "name1"));
            product.Add(new Product(500, "name2"));
            product.Add(new Product(72, "name5"));
            product.Add(new Product(9, "name4"));


		//搜索功能
            List<Product> cheapest = product.FindAll(delegate (Product p) { return p.Price < 25 || p.Name.Contains("5"); });
            //lambda写法
		//      List<Product> cheapest = product.FindAll(p => p.Price == 500 || p.Name.Contains("5"));

//lambda另一种写法  //List 和 IEnumable要用 tolist转换

      //      List<Product> cheapest = product.Where(p => p.Price == 500 || p.Name.Contains("5")).ToList();



    
            foreach (var ss in cheapest)
            {
                Console.WriteLine(ss.Name+":"+ss.Price);

            }



            Console.ReadKey();
        }
    }
}