建立一个基类Building，用来存储一座楼房的层数、房间数以及它的总平方英尺数。建立派生类Housing，继承Building，并存储下面的内容:卧室和浴室的数量，另外，建立派生类Office，继承Building，并存储灭火器和电话的数目。然后，编制应用程序，建立住宅楼对象和办公楼对象，并输出它们的有关数据。

好的，这是一个简单的C++代码实现：

#include <iostream>
using namespace std;

class Building{
protected:
    int num_floors;
    int num_rooms;
    int total_sqft;
public:
    Building(int f, int r, int t):num_floors(f), num_rooms(r), total_sqft(t){};
};

class Housing : public Building{
private:
    int num_bedrooms;
    int num_bathrooms;
public:
    Housing(int f, int r, int t, int b, int ba):Building(f, r, t), num_bedrooms(b), num_bathrooms(ba){};
    void display(){
        cout << "Housing Info:\nNumber of floors: " << num_floors << "\nNumber of rooms: " << num_rooms << "\nTotal square feet: " << total_sqft << "\nNumber of bedrooms: " << num_bedrooms << "\nNumber of bathrooms: " << num_bathrooms << endl;
    }
};

class Office : public Building{
private:
    int num_fire_extinguishers;
    int num_phones;
public:
    Office(int f, int r, int t, int fe, int p):Building(f, r, t), num_fire_extinguishers(fe), num_phones(p){};
    void display(){
        cout << "Office Info:\nNumber of floors: " << num_floors << "\nNumber of rooms: " << num_rooms << "\nTotal square feet: " << total_sqft << "\nNumber of fire extinguishers: " << num_fire_extinguishers << "\nNumber of phones: " << num_phones << endl;
    }
};

int main(){
    Housing myHouse(2, 5, 2000, 3, 2);
    myHouse.display();

    Office myOffice(1, 10, 5000, 5, 15);
    myOffice.display();

    return 0;
}

输出结果为：

Housing Info:
Number of floors: 2
Number of rooms: 5
Total square feet: 2000
Number of bedrooms: 3
Number of bathrooms: 2
Office Info:
Number of floors: 1
Number of rooms: 10
Total square feet: 5000
Number of fire extinguishers: 5
Number of phones: 15

以上代码中，Building类是一个基类，存储了一座楼房的基本信息。Housing和Office类都是继承自Building类的派生类，分别存储住宅楼和办公楼的信息，并在display()函数中输出有关数据。在main()函数中，我们创建了一个住宅楼对象myHouse和一个办公楼对象myOffice，并调用它们各自的display()函数来输出它们的相关信息。