C++考试题（Food、Fruit、Bread）_美食之旅(food)c++

#include < iostream >
#include < string >
using namespace std;
class Food{
public:
	Food(char* n)
	{	 
		name = new char[strlen(n) + 1];
		strcpy(name,n);
	}
	virtual void eat() = 0;
protected:
	char* name;
};

class Fruit:public Food
{
public:
	Fruit(char* n): Food(n){}
	void eat()
	{
		cout <<"吃"<< name << endl;
	}

};

class Bread:public Food
{
public:
	Bread(char* n): Food(n){}
	void eat()
	{
		cout <<"吃"<< name << endl;
	}
};

int main()
{

	int choice;
	Food * f;
	Fruit *fr = new Fruit("火龙果");
	Bread br("椰三角");
	cout << "1: 吃水果\n";
	cout << "2: 吃面包\n";
	cout << "请输入你的选择：";
	cin >> choice;
	switch(choice)
	{
	case 1:
		f = fr;
		break;

	case 2: 

		f = &br;

		break;

	}

	f->eat();

	return 0;

}


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