c++ 声明类在头文件中（猫类声明在Cat.h中）

[c++]代码库

#include <iostream>
class Cat {
public:
	Cat(int initialAge);
	~Cat();
	int GetAge() const {
		return itsAge;
	} // inline!
	void SetAge(int age) {
		itsAge = age;
	} // inline!
	void Meow() const {
		std::cout << "Meow.\n";
	} // inline!
private:
	int itsAge;
};