内嵌类&this指针使用

#include <iostream>

#include <string>

using namespace std;

class home{

public:

class Car : public string

{

friend class home;

public:

Car(const char* name, int num):string(name){ sits = num; cout<<"Car::this="<<*this<<"/n"; }

int sits;

static Car* NewCar(const char* name, int num)

{

return new Car(name, num);

}

void setSits(int b){sits = b;}

};

Car* pCar;

public:

void BuyCar(const char* name, int sits){ pCar = Car::NewCar(name, sits);}

home(){ pCar = NULL; }

~home(){ if(pCar) delete pCar; pCar = NULL; }

};

int main()

{

home hh;

hh.BuyCar("宝马", 4);

return 0;

}

内嵌类和this指针和好处，这是是个实例