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[試題5]
閱讀下列說(shuō)明和C++代碼，回答下列問(wèn)題。
[說(shuō)明]
現(xiàn)欲開(kāi)發(fā)一個(gè)軟件系統(tǒng)，要求能夠同時(shí)支持多種不同的數(shù)據(jù)庫(kù)，為此采用抽象工廠模式設(shè)計(jì)該系統(tǒng)。以SQL Server和Access兩種數(shù)據(jù)庫(kù)以及系統(tǒng)中的數(shù)據(jù)庫(kù)表Department為例，其類圖如圖1-14所示。

[C++代碼]
#include＜iostream＞
using namespace std;
class Department{/*代碼省略*/};
class IDepartment{
public:
______=0;
______=0;
};
class SqlserverDepartment: ______{
public:
void Insert(Department* department){
cout＜＜"Insert a record into Department in SQL Server!\n";
//其余代碼省略
}
Department GetDepartment(int id){
}
};
class AccessDepartment: ______{
public:
void Insert(Department* department){
cout＜＜"Insert a record into Department in ACCESS!\n";
//其余代碼省略
}
Department GetDepartment(int id){
/*代碼省略*/
}
};
______{
public:
______=0;
};
class SqlServerFactory: public IFactory{
public:
IDepartment* CreateDepartment() {return new SqlserverDepartment(); }
};
class AccessFactory:public IFactory{
public:
IDepartment* CreateDepartment() {  return new AccessDepartment() ;  }
//其余代碼省略
};