static void Main(string[] args)
{
ProductsModel p = new ProductsModel();
p.Add(new ProductsModel());
CustomersModel customer = new CustomersModel()
{
Name = ""
};
customer.GetBy(1);
Student mahmoud = new Student(new ITShareCourse());
mahmoud.iCourse.GetCourseNames();
Student ahmed = new Student(new Course());
ahmed.iCourse.GetCourseNames();
}
public void Update(CustomersModel obj)
{
throw new NotImplementedException();
}