STL set自定义对象

#include 
#include 

struct Person{
public:
    Person(int age, std::string name):m_age(age), m_name(name){}    

    
    int m_age;
    std::string m_name;
};

std::ostream& operator<<(std::ostream& cout, Person per) 
{
    cout< right.m_age;
    }
};
int main()
{
    std::set st;
    Person p1(10, "zhangsan");
    st.insert(p1);
    Person p2(20, "lisi");
    st.insert(p2);
    
    for (auto it = st.begin(); it != st.end(); ++it)
    {
        std::cout<<*it<