static void Main(string[] args) { User user = new User(); Department dept = new Department(); IUserOperation userOperation = DataAccess.CreateUserOperation(); IDeptOperation deptOperation = DataAccess.CreateDeptOperation(); userOperation.Insert(user); userOperation.GetUser(3); deptOperation.Insert(dept); deptOperation.GetDepartment(4); }
static void Main(string[] args) { //使用抽象工厂模式,可以在工厂中生产多种产品 User user = new User(); Department dept = new Department(); //如果需要更换数据库,只需要修改下面这个改为其他数据库的工厂即可 //缺点是,当增加一个表时,需要增加表类,然后增加相关表操作类,有多少数据库就要增加多少相关表操作类 //再然后就是要修改各个数据库工厂类,在各个工厂中增加生产操作类的方法 IDB db = new SqlServer(); IUserOperation userOperation = db.CreateUserOperation(); IDeptOperation deptOperation = db.CreateDeptOperation(); userOperation.Insert(user); userOperation.GetUser(1); deptOperation.Insert(dept); deptOperation.GetDepartment(2); Console.ReadKey(); }