猫科动物和老虎

Description

下面是不完整的继承类定义，

class Cat{int data;public:Cat();};class Tiger : public Cat{int data;public:Tiger(int);};

试完成其定义(你可以根据需要增加必要的构造函数和析构函数)，使得主函数main运行后能得到其后结果：

int main(){Cat bc;Tiger dc(6);Tiger dc1(18);return 0;}

运行结果：

Default Constructor of Cat is RunningConstructor of Cat is Running 6Constructor of Tiger is Running 6Constructor of Cat is Running 18Constructor of Tiger is Running 18Destructor of Tiger is Running 18Destructor of Cat is Running 18Destructor of Tiger is Running 6Destructor of Cat is Running 6Destructor of Cat is Running 0

注意：你只需要提交类定义。

framework.cpp

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