帮我用C++写一个学生管理系统的代码

以下是一个简单的学生管理系统的代码，包括添加学生、删除学生、查找学生、修改学生信息和显示所有学生信息等功能：

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

using namespace std;

// 学生类
class Student {
public:
    Student(string name, int age, string gender, string id) {
        m_name = name;
        m_age = age;
        m_gender = gender;
        m_id = id;
    }
    string GetName() const { return m_name; }
    int GetAge() const { return m_age; }
    string GetGender() const { return m_gender; }
    string GetId() const { return m_id; }
    void SetName(string name) { m_name = name; }
    void SetAge(int age) { m_age = age; }
    void SetGender(string gender) { m_gender = gender; }
    void SetId(string id) { m_id = id; }
private:
    string m_name;
    int m_age;
    string m_gender;
    string m_id;
};

// 学生管理系统类
class StudentManagementSystem {
public:
    // 添加学生
    void AddStudent() {
        string name, gender, id;
        int age;
        cout << "请输入学生姓名：";
        cin >> name;
        cout << "请输入学生年龄：";
        cin >> age;
        cout << "请输入学生性别：";
        cin >> gender;
        cout << "请输入学生学号：";
        cin >> id;
        m_students.push_back(Student(name, age, gender, id));
        cout << "已成功添加学生：" << name << endl;
    }

    // 删除学生
    void RemoveStudent() {
        string id;
        cout << "请输入要删除的学生学号：";
        cin >> id;
        for (auto it = m_students.begin(); it != m_students.end(); it++) {
            if (it->GetId() == id) {
                m_students.erase(it);
                cout << "已成功删除学生：" << it->GetName() << endl;
                return;
            }
        }
        cout << "未找到该学生，无法删除！" << endl;
    }

    // 查找学生
    void FindStudent() {
        string id;
        cout << "请输入要查找的学生学号：";
        cin >> id;
        for (auto it = m_students.begin(); it != m_students.end(); it++) {
            if (it->GetId() == id) {
                cout << "学生信息：" << endl;
                cout << "姓名：" << it->GetName() << endl;
                cout << "年龄：" << it->GetAge() << endl;
                cout << "性别：" << it->GetGender() << endl;
                cout << "学号：" << it->GetId() << endl;
                return;
            }
        }
        cout << "未找到该学生！" << endl;
    }

    // 修改学生信息
    void ModifyStudent() {
        string id;
        cout << "请输入要修改的学生学号：";
        cin >> id;
        for (auto it = m_students.begin(); it != m_students.end(); it++) {
            if (it->GetId() == id) {
                string name, gender, id;
                int age;
                cout << "请输入修改后的学生姓名：";
                cin >> name;
                cout << "请输入修改后的学生年龄：";
                cin >> age;
                cout << "请输入修改后的学生性别：";
                cin >> gender;
                cout << "请输入修改后的学生学号：";
                cin >> id;
                it->SetName(name);
                it->SetAge(age);
                it->SetGender(gender);
                it->SetId(id);
                cout << "已成功修改学生信息：" << name << endl;
                return;
            }
        }
        cout << "未找到该学生，无法修改！" << endl;
    }

    // 显示所有学生信息
    void ShowAllStudents() {
        cout << "所有学生信息如下：" << endl;
        for (auto student : m_students) {
            cout << "姓名：" << student.GetName() << endl;
            cout << "年龄：" << student.GetAge() << endl;
            cout << "性别：" << student.GetGender() << endl;
            cout << "学号：" << student.GetId() << endl;
            cout << "---------------------" << endl;
        }
    }
private:
    vector<Student> m_students;
};

int main() {
    StudentManagementSystem sms;
    while (true) {
        int choice;
        cout << "请选择要执行的操作：" << endl;
        cout << "1. 添加学生" << endl;
        cout << "2. 删除学生" << endl;
        cout << "3. 查找学生" << endl;
        cout << "4. 修改学生信息" << endl;
        cout << "5. 显示所有学生信息" << endl;
        cout << "6. 退出程序" << endl;
        cin >> choice;
        switch (choice) {
        case 1:
            sms.AddStudent();
            break;
        case 2:
            sms.RemoveStudent();
            break;
        case 3:
            sms.FindStudent();
            break;
        case 4:
            sms.ModifyStudent();
            break;
        case 5:
            sms.ShowAllStudents();
            break;
        case 6:
            return 0;
        default:
            cout << "输入有误，请重新输入！" << endl;
            break;
        }
    }
    return 0;
}

注意：此代码只是一个简单的示例，实际使用时需要根据具体需求进行修改和完善。