public class BloggingContext : DbContext

    {

       public BloggingContext() : base("name=testConn")

        { }

        public DbSet<Person> Blogs { get; set; }

        public DbSet<DepartPerson> Posts { get; set; }

    }

    class Program

    {

        static void Main(string[] args)

        {//模型改变重新创建数据库

             Database.SetInitializer(new DropCreateDatabaseIfModelChanges<BloggingContext>());

            using (var db = new BloggingContext())

            {

                Person blog = new Person()

                {

                    Name = "zhangsan",

                    Age = "",

                    ID = Guid.NewGuid().ToString().Replace("-", "")

                };

                db.Blogs.Add(blog);

                db.SaveChanges();

                foreach (var item in db.Blogs)

                {

                    Console.WriteLine("Name:" + item.Name);

                }

            }

            Console.Read();

        }