static void Main(string[] args) { using (MyCodeFistDBEntitis db = new MyCodeFistDBEntitis()) { db.Database.Log = Console.WriteLine; //db.Students.Add(new Student { StudentName = "CodeFirst使用者", Gender = "男" }); int result = db.SaveChanges(); Console.WriteLine(result); } Console.Read(); }
// static void Main(string[] args) // { // using (MyCodeFistDBEntitis db = new MyCodeFistDBEntitis()) // { // db.Database.Log = Console.WriteLine; // db.Students.Add(new Student { StudentName = "CodeFirst使用者", Gender = "男" }); // int result = db.SaveChanges(); // Console.WriteLine(result); // } // Console.Read(); // } static void Main(string[] args) { using (MyCodeFistDBEntitis db = new MyCodeFistDBEntitis()) { db.Database.Log = Console.WriteLine; var student = db.Students.FirstOrDefault(); student.StudentName = "修改后的姓名2"; int result = db.SaveChanges(); Console.WriteLine(result); } Console.Read(); }