C#的排序方法 OrderBy

using System;using System.Collections.Generic;using System.Linq;using System.Net.Http;using System.Runtime.ExceptionServices;using System.Text;using System.Threading;using System.Threading.Tasks;
// 命名空间namespace pro01{    // 类    internal class Program    {        // main 方法         static void Main(string[] args)        {            // LINQ 常用的扩展方法 IEnumerable<T> 扩展方法            // 数组 List 集合，Dictionary 字典，都是实现 IEnumerable 接口的扩展方法            // 初始化数据            List<Employee> list = new List<Employee>();  // 新建类型为 Employee 的集合数据            list.Add(new Employee {Id = 1,Name = "AAA",Age = 10,Gender = true ,Salary = 1000 });            list.Add(new Employee {Id = 2,Name = "BBB",Age = 11,Gender = false ,Salary = 2000 });            list.Add(new Employee {Id = 2,Name = "BBB",Age = 11,Gender = false ,Salary = 2000 });            list.Add(new Employee {Id = 2,Name = "BBB",Age = 11,Gender = false ,Salary = 2000 });            list.Add(new Employee {Id = 1,Name = "BBB",Age = 11,Gender = false ,Salary = 2000 });            list.Add(new Employee {Id = 34,Name = "BBB",Age = 11,Gender = false ,Salary = 2000 });            list.Add(new Employee { Id = 3,Name = "CCC",Age = 121,Gender = true ,Salary = 7000 });            list.Add(new Employee { Id = 3,Name = "CCC",Age = 1,Gender = true ,Salary = 3000 });            Console.WriteLine("list 数据");            foreach (Employee i in list)            {                Console.WriteLine(i);            }            // TODO 排序            // Order 正序             IEnumerable<Employee> e1 = list.OrderBy(row => row.Age).ThenBy(item => item.Id);            Console.WriteLine("正序排序按照 从小到大 Age  然后按照 ID 排序");            foreach (Employee i in e1)            {                Console.WriteLine(i);            }
            // OrderDescending 倒叙排序 【由大到小】
            Console.ReadLine();        }    }}