在线求助大佬

#include<iostream>
#include<string>
using namespace std;
class Student{
    public:
        Student();
        Student(string m_name, int m_age, int m_score_C, int m_score_Cpp, int m_score_math);
        Student(const Student& st);
        Student& operator=(const Student& st);
        ~Student();
        void getInformation();
    private:
        string name;
        int age;
        int score_C;
        int score_Cpp;
        int score_math;

};
inline
Student::Student()
{}
inline
Student::Student(string m_name, int m_age, int m_score_C, int m_score_Cpp, int m_score_math)
: name(m_name),age(m_age),score_C(m_score_C), score_Cpp(m_score_Cpp), score_math(m_score_math)
{}
inline
Student::Student(const Student& st)
{
    name = st.name;
    age = st.age;
    score_C = st.score_C;
    score_Cpp = st.score_Cpp;
    score_math = st.score_math;

}
inline Student&
Student::operator=(const Student& st)
{
    this->name = st.name;
    this->age = st.age;
    this->score_C = st.score_C;
    this->score_Cpp = st.score_Cpp;
    this->score_math = st.score_math;
    return *this;
}
inline
Student::~Student()
{}
inline void
Student:: getInformation()
{
    cout << "Name:" << this->name << endl;
    cout << "Age:" << this->age << endl;
    cout << "Score of C:" << this->score_C << endl;
    cout << "Score of Cpp:" << this->score_Cpp << endl;
    cout << "Score of math:" << this->score_math << endl;
}
int main(void)
{  
    Student s1("Lmw", 25, 90, 90, 90);
    s1.getInformation();
    Student s2;
    s2 = s1;
    s2.getInformation();
    return 0;
}