向量中如何给类赋值

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

class Student
{
public:
    Student(int age):m_age(age)
    {
    }
    void Set(int age)
    {
        m_age = age;
    }
    int Get()
    {
        return m_age ;
    }
private:
    int m_age;
};
int main()
{
    vector<Student> sv;
    Student st(20);
    Student st1(23);
    sv.push_back(st);
    sv.push_back(st1);
    vector<Student>::iterator it = sv.begin();
    for(; it != sv.end(); it++)
    {
        cout <<it->Get()<< endl;
    }
    return 0;
}