c++list容器问题

问题遇到的现象和发生背景

我想删除p1，我重载了==操作符还是没有用

问题相关代码，请勿粘贴截图

#include<iostream>
using namespace std;
#include<list>
#include<string>
class Person
{
public:
    Person(string name,int age, int height)
    {
        this->m_Age = age;
        this->m_Height = height;
        this->m_Name = name;
    }
    bool operator==(const Person& p)
    {
        if (this->m_Name == p.m_Name && this->m_Age == p.m_Age && this->m_Height == p.m_Height)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    int m_Age;
    string m_Name;
    int m_Height;
};

bool Compater(Person& p1,Person& p2)
{
    if (p1.m_Age == p2.m_Age)
    {
        return p1.m_Height < p2.m_Height;
    }
    return p1.m_Age > p2.m_Age;
}

void test01()
{
    list<Person>L;
    Person p1("孙悟空", 50, 200);
    Person p2("唐僧", 60, 200);
    Person p3("沙悟净", 40, 200);
    Person p4("猪八戒", 80, 200);
    Person p5("关羽", 30, 170);
    Person p6("刘备", 30, 180);
    Person p7("张飞", 30, 175);
    L.push_back(p1);
    L.push_back(p2);
    L.push_back(p3);
    L.push_back(p4);
    L.push_back(p5);
    L.push_back(p6);
    L.push_back(p7);
    //排序，按年龄降序
    //L.sort();
    //不能直接进行排序，要告知排序规则
    L.sort(Compater);
    for (list<Person>::iterator it = L.begin(); it != L.end(); it++)
    {
        cout << "姓名" << (*it).m_Name << " 年龄" << it->m_Age << " 身高" << it->m_Height << endl;
    }

    L.remove(p4);
    cout << "删除后" << endl;
    for (list<Person>::iterator it = L.begin(); it != L.end(); it++)
    {
        cout << "姓名" << (*it).m_Name << " 年龄" << it->m_Age << " 身高" << it->m_Height << endl;
    }
}


int main()
{
    test01();
    return 0;
}

运行结果及报错内容

我的解答思路和尝试过的方法

我想要达到的结果

看报错信息啊，左操作数是const，如果你想用成员函数的话，必须成员函数标记为const啊

bool operator==(const Person& p) const

C++对类型的要求比较严格

operator==()运算符重载函数应该是const成员函数，改为下面形式

bool operator==(const Person& p) const
{
    // ...
}

#include <iostream>
#include <list>
#include <string>

using namespace std;

class Person
{
public:
    Person() = delete;
    Person(string name,int age, int height)
    {
        this->m_Age = age;
        this->m_Height = height;
        this->m_Name = name;
    }

    bool operator==(const Person& p)
    {
        bool ret = (this->m_Name == p.m_Name && this->m_Age == p.m_Age && this->m_Height == p.m_Height);
        return ret;
    }

    int m_Age;
    string m_Name;
    int m_Height;
};

bool Compater(Person& p1,Person& p2)
{
    if (p1.m_Age == p2.m_Age)
    {
        return p1.m_Height < p2.m_Height;
    }

    return p1.m_Age > p2.m_Age;
}

void show(list<Person> &L)
{
    int idx = 0;
    for (list<Person>::iterator it = L.begin(); it != L.end(); it++)
    {
        cout << "[" << (++idx) <<"] " << "姓名:" << (*it).m_Name << " 年龄:" << it->m_Age << " 身高:" << it->m_Height << endl;
    }
}
 
void test01()
{    
    Person p1("孙悟空", 50, 200);
    Person p2("唐僧", 60, 200);
    Person p3("沙悟净", 40, 200);
    Person p4("猪八戒", 80, 200);
    Person p5("关羽", 30, 170);
    Person p6("刘备", 30, 180);
    Person p7("张飞", 30, 175);

    list<Person> L;
    L.push_back(p1);
    L.push_back(p2);
    L.push_back(p3);
    L.push_back(p4);
    L.push_back(p5);
    L.push_back(p6);
    L.push_back(p7);

    cout << "排序前" << endl;
    show(L);

    //排序，按年龄降序
    //L.sort();
    //不能直接进行排序，要告知排序规则

    cout << "排序后" << endl;
    L.sort(Compater);
    show(L);
 
    cout << "删除后" << endl;
    L.remove(p4);
    show(L);
}

int main()
{
    test01();
    return 0;
}

我的测试环境是MSYS2，GCC 11.2，运行结果正常