如何使用lambda编写IQueryable连接？

using System;
using System.Linq;

namespace IQueryableExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // 创建数据上下文
            using (var context = new MyDbContext())
            {
                // 构建查询表达式
                var query = context.Users
                    .Where(u => u.Age > 18)
                    .OrderBy(u => u.Name)
                    .Select(u => new { u.Name, u.Email });

                // 执行查询
                var result = query.ToList();

                // 输出结果
                foreach (var user in result)
                {
                    Console.WriteLine($"Name: {user.Name}, Email: {user.Email}");
                }
            }
        }
    }

    // 定义数据模型
    public class User
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Email { get; set; }
        public int Age { get; set; }
    }

    // 数据上下文
    public class MyDbContext : IDisposable
    {
        public IQueryable<User> Users { get; set; }

        public MyDbContext()
        {
            // 初始化数据上下文
            Users = new[]
            {
                new User { Id = 1, Name = "Alice", Email = "alice@example.com", Age = 20 },
                new User { Id = 2, Name = "Bob", Email = "bob@example.com", Age = 25 },
                new User { Id = 3, Name = "Charlie", Email = "charlie@example.com", Age = 18 }
            }.AsQueryable();
        }

        public void Dispose()
        {
            // 释放资源
        }
    }
}