2-1. Creating a Simple Model 使用图形界面设计器创建一个简单的模型

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

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            using (var context = new Recipe1Context())
            {
                var person = new Person { FirstName = "Robert", MiddleName = "Allen", LastName = "Doe", PhoneNumber = "867-5309" };
                context.PersonSet.Add(person);
                person = new Person { FirstName = "John", MiddleName = "K.", LastName = "Smith", PhoneNumber = "867-5309" };
                context.PersonSet.Add(person);
                person = new Person { FirstName = "Kathy", MiddleName = "Anne", LastName = "Ryan", PhoneNumber = "867-5309" };
                context.PersonSet.Add(person);

                context.SaveChanges();
            }

            using (var context = new Recipe1Context())
            {
                foreach (var person in context.PersonSet)
                {
                    Console.WriteLine("{0} {1} {2}, Phone: {3}", person.FirstName, person.MiddleName, person.LastName, person.PhoneNumber);
                }
                Console.ReadKey();
            }
        }
    }
}