定义一个Dog类，包含age，weight等属性，以及对这些属性操作的方法。实现并测试这个类。
【输入形式】
程序参考的输入（提示“Input Age and Weight:”）：
Input Age and Weight:3 20
【输出形式】
程序参考的输出：
Dog Age:3 years
Dog Weight:20kg
【样例输入】
Input Age and Weight:3 20
【样例输出】
Dog Age:3 years
Dog Weight:20kg
#include <iostream>
using namespace std;
class dog
{
int age, weight;
public:
void setdog(int Age, int Weight);
void display();
};
void dog::setdog(int Age, int Weight)
{
age = Age;
weight = Weight;
}
void dog::display()
{
cout << "Dog Age:" << age << "years" << endl;
cout << "Dog Weight:" << weight << "kg" << endl;
return;
}
int main()
{
dog d;
int age, weight;
cout << "Input Age and Weight:" << endl;
cin >> age >> weight;
(age, weight);
();
return 0;
}