Question

编写C++程序：声明一个动物类animal，再由此派生出狗类Dog和猫类Cat。

编写一个animal基类，继承该类，定义派生类dog，cat。基类包含动物名称字段name和获取该字段的函数getname，及虚函数getweight，派生类覆盖该函数，输出dog和cat自身的重量。在主函数main中，定义dog和cat对象，输出该对象的信息。
用C++程序编写。拜托哪位大神帮帮忙。

Answer 1

#include <iostream>
#include <string>
using namespace std;

class animal
{
public:
	animal(string n){ name = n; };
	string GetName(){ return name; };
	virtual float GetWeight()= 0;
private :
	string name;
	
};

class dog :public animal
{
public:
	dog(float w, string n) :animal(n){ weight = w; };
	float GetWeight() { return weight; };
private:
	float weight;
};

class cat : public animal
{
public:
	cat(float w, string n) :animal(n){ weight = w; };
	float GetWeight() { return weight; };
private:
	float weight;
};
void main()
{
	dog d(2,"dog1");
	cat c(1, "cat1");
	cout << d.GetName() << ":" << d.GetWeight() << "KG" << endl;
	cout << c.GetName() << ":" << c.GetWeight() << "KG" << endl;
}

Answer 2

引用yu321chang的回答：
#include <iostream>#include <string>using namespace std;class animal{public: animal(string n){ name = n; }; string GetName(){ return name; }; virtual float GetWeight()= 0;private : string name; };class dog :public animal{public: dog(float w, string n) :animal(n){ weight = w; }; float GetWeight() { return weight; };private: float weight;};class cat : public animal{public: cat(float w, string n) :animal(n){ weight = w; }; float GetWeight() { return weight; };private: float weight;};void main(){ dog d(2,"dog1"); cat c(1, "cat1"); cout << d.GetName() << ":" << d.GetWeight() << "KG" << endl; cout << c.GetName() << ":" << c.GetWeight() << "KG" << endl;}

int main()吧