C++面向对象入门~构造函数编译不通过

Question

一个简单的面向对象入门，在codeblock上，构造函数的参数编译失败

#include <iostream>
using namespace std;
class Building
{
protected:
    string name;
    int floorNum,roomAmount;
    float wholeArea;
public:
    Building(string n,int f,int r,float w)
    {
        this->name=n;
        this->floorNum=f;
        this->roomAmount=r;
        this->wholeArea=w;
    }
    void display()
    {
        cout<<"建筑物名称："<<name<<endl;
        cout<<"层数："<<floorNum<<endl;
        cout<<"教室（房间）数"<<roomAmount<<endl;
        cout<<"总面积"<<wholeArea<<endl;
    }
};
class TeachBuilding:protected Building
{
protected:
    string func;
public:
    TeachBuilding(string n,int f,int r,float w,string func):Building(string n,int f,int r,float w)
    {
        this->func=func;
    }
    void display()
    {
        Building::display();
        cout<<"建筑物功能："<<func<<endl;
    }
};
class DormBuilding :public Building
{
protected:
    int people;
public:
    DormBuilding(string n,int f,int r,float w,int people):Building(string n,int f,int r,float w)
    {
        this->people=people;
    }
    void display()
    {
        Building::display();
        cout<<"可容纳人数："<<people<<endl;
    }
};
int main()
{
    TeachBuilding TB("5号楼",5,40,4000,"机房");
    TB.display();
    cout<<endl;
    DormBuilding DB("宿舍C3",8,140,1352,523);
    DB.display();
    return 0;

}

Answer 1

 #include <iostream>
using namespace std;
class Building
{
protected:
    string name;
    int floorNum,roomAmount;
    float wholeArea;
public:
    Building(string n,int f,int r,float w)
    {
        this->name=n;
        this->floorNum=f;
        this->roomAmount=r;
        this->wholeArea=w;
    }
    void display()
    {
        cout<<"建筑物名称："<<name<<endl;
        cout<<"层数："<<floorNum<<endl;
        cout<<"教室（房间）数"<<roomAmount<<endl;
        cout<<"总面积"<<wholeArea<<endl;
    }
};
class TeachBuilding:protected Building
{
protected:
    string func;
public:
    TeachBuilding(string n,int f,int r,float w,string func):Building(n,f,r,w) //修改
    {
        this->func=func;
    }
    void display()
    {
        Building::display();
        cout<<"建筑物功能："<<func<<endl;
    }
};
class DormBuilding :public Building
{
protected:
    int people;
public:
    DormBuilding(string n,int f,int r,float w,int people):Building(n,f,r,w) //修改
    {
        this->people=people;
    }
    void display()
    {
        Building::display();
        cout<<"可容纳人数："<<people<<endl;
    }
};
int main()
{
    TeachBuilding TB("5号楼",5,40,4000,"机房");
    TB.display();
    cout<<endl;
    DormBuilding DB("宿舍C3",8,140,1352,523);
    DB.display();
    return 0;

}