C++ this指针和类的继承

  
 
 
#include 
#include 

//基类 
class Animal
{
	public:
		std::string mouth;
		
		void eat();
		void sleep();
		void drool();
};

//子类 
class Pig:public Animal
{
	public:
		void climb();
};

class Turtle:public Animal
{
	public:
		void swim();
};

void Animal::eat()
{
	std::cout << "I'm eatting!" <