写一个c++类，管理不同结构体的数据，要求 1.提供将结构体数据序例化为map存储在此类中 2.提供将类中的数据通过结构体的名称读取数据

以下是一个简单的实现，供参考：

#include <iostream>
#include <map>
#include <string>
#include <vector>

using namespace std;

struct Student {
    string name;
    int age;
    string major;
};

struct Teacher {
    string name;
    int age;
    string subject;
};

class DataManager {
public:
    void addStudent(const Student& s) {
        //将学生结构体序列化为map，并添加到数据管理类中
        map<string, string> data;
        data["name"] = s.name;
        data["age"] = to_string(s.age);
        data["major"] = s.major;
        m_studentData.push_back(data);
    }

    void addTeacher(const Teacher& t) {
        //将教师结构体序列化为map，并添加到数据管理类中
        map<string, string> data;
        data["name"] = t.name;
        data["age"] = to_string(t.age);
        data["subject"] = t.subject;
        m_teacherData.push_back(data);
    }

    string getStudentData(int index, const string& field) {
        //根据索引和字段名获取学生数据
        if (index >= m_studentData.size()) {
            return "";
        }
        map<string, string> data = m_studentData[index];
        if (data.count(field) == 0) {
            return "";
        }
        return data[field];
    }

    string getTeacherData(int index, const string& field) {
        //根据索引和字段名获取教师数据
        if (index >= m_teacherData.size()) {
            return "";
        }
        map<string, string> data = m_teacherData[index];
        if (data.count(field) == 0) {
            return "";
        }
        return data[field];
    }

private:
    vector<map<string, string>> m_studentData;
    vector<map<string, string>> m_teacherData;
};

int main() {
    DataManager dm;
    Student s1 = {"Tom", 18, "Computer Science"};
    Student s2 = {"Lily", 19, "Mathematics"};
    Teacher t1 = {"John", 35, "History"};
    Teacher t2 = {"Mary", 40, "Literature"};
    dm.addStudent(s1);
    dm.addStudent(s2);
    dm.addTeacher(t1);
    dm.addTeacher(t2);
    cout << dm.getStudentData(0, "name") << endl; //输出 "Tom"
    cout << dm.getStudentData(1, "major") << endl; //输出 "Mathematics"
    cout << dm.getTeacherData(0, "age") << endl; //输出 "35"
    cout << dm.getTeacherData(1, "subject") << endl; //输出 "Literature"
    return 0;
}