小猫喵喵叫 getage那里为什么一直报错呀

Question

1.定义一个cat类，

设置猫咪年龄：函数名为SetAge;

获取猫咪年龄：函数名为GetAge;

输出喵喵叫：函数名为Meow，输出“Meow”

2.在主函数实现

定义猫咪对象frisky

设置猫咪年龄为5

输出喵喵叫

输出猫咪年龄

输出喵喵叫

#include<iostream>
using namespace std;
class cat{
    int age;
public:
    void setage(int a){
        age=a;
    }
    void getage(){
        return age;
    }
    void mewo(){
        cout<<"Mewo"<<endl;
    }
};
int main(){
    cat frisky;
    frisky.mewo();
    frisky.setage(5);
    frisky.getage();
    cout<<"frisky is a cat who is "<<frisky.age<<"years old.";
    frisky.mewo();
}

Answer 1

#include <iostream>

using namespace std;

class cat
{
    int _age = 0;

public:
    void SetAge(int age)
    {
        _age = age;
    }

    int GetAge() const
    {
        return _age;
    }

    void Meow() const
    {
        cout << "Meow" << endl;
    }
};

int main()
{
    cat frisky;
    frisky.Meow();
    frisky.SetAge(5);
    cout << "frisky is a cat who is " << frisky.GetAge() << " years old." << endl;
    frisky.Meow();
    return 0;
}