抽象工厂

############  User表 ##################
class User(object):
    def insert(self):
        pass
    def select(self):
        pass

class MysqlUser(User):
    def insert(self):
        print("MySQL: 给User表增加一条记录")
    def select(self):
        print("MySQL: 根据ID查询User表的记录")

class OracleUser(User):
    def insert(self):
        print("Oracle: 给User表增加一条记录")
    def select(self):
        print("Oracle: 根据ID查询User表的记录")

############## Department表 ####################
class Department(object):
    def insert(self):
        pass
    def select(self):
        pass

class MysqlDepartment(Department):
    def insert(self):
        print("MySQL: 给Department表增加一条记录")
    def select(self):
        print("MySQL: 根据ID查询Department表的记录")

class OracleDepartment(Department):
    def insert(self):
        print("Oracle: 给Department表增加一条记录")
    def select(self):
        print("Oracle: 根据ID查询Department表的记录")

########## 抽象工厂类 ################
class Factory:
    def create_user(self):
        pass
    def create_department(self):
        pass

class MysqlFactory(Factory):
    def create_user(self):
        return MysqlUser()
    def create_department(self):
        return MysqlDepartment()

class OracleFactory(Factory):
    def create_user(self):
        return OracleUser()
    def create_department(self):
        return OracleDepartment()

if __name__ == '__main__':
    factory = OracleFactory()  OracleFactory
    user = factory.create_user()
    user.insert()
    user.select()
    department = factory.create_department()
    department.insert()
    department.select()

抽象工厂