用c++编写一个简单的学生信息管理程序及菜单系统，学生包括学号、姓名、性别、年龄、专业、班级、成绩等成员，要求可以对学生信息实现显示、查找、删除、修改

好的，我可以为你提供一个简单的学生信息管理程序及菜单系统的代码，以下是代码：

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

//学生结构体
struct Student{
    string id;  //学号
    string name;  //姓名
    string gender;  //性别
    int age;  //年龄
    string major;  //专业
    string cls;  //班级
    float score;  //成绩
};

//链表节点结构体
struct Node{
    Student data;  //学生信息
    Node* next;  //指向下一个节点的指针
};

//链表类
class StudentList{
private:
    Node* head;  //头节点指针
public:
    //构造函数
    StudentList(){
        head = new Node;
        head->next = NULL;
    }

    //析构函数
    ~StudentList(){
        Node* p = head;
        Node* q = p;
        while(p != NULL){
            q = p->next;
            delete p;
            p = q;
        }
    }

    //添加学生信息
    void addStudent(Student data){
        Node* p = head;
        while(p->next != NULL){
            p = p->next;
        }
        Node* node = new Node;
        node->data = data;
        node->next = NULL;
        p->next = node;
    }

    //删除学生信息
    void deleteStudent(string id){
        Node* p = head->next;
        Node* q = head;
        while(p != NULL){
            if(p->data.id == id){
                q->next = p->next;
                delete p;
                return;
            }
            q = p;
            p = p->next;
        }
    }

    //修改学生信息
    void modifyStudent(string id, Student data){
        Node* p = head->next;
        while(p != NULL){
            if(p->data.id == id){
                p->data = data;
                return;
            }
            p = p->next;
        }
    }

    //查找学生信息
    Student* findStudent(string id){
        Node* p = head->next;
        while(p != NULL){
            if(p->data.id == id){
                return &(p->data);
            }
            p = p->next;
        }
        return NULL;
    }

    //显示学生信息
    void display(){
        Node* p = head->next;
        while(p != NULL){
            cout << "学号：" << p->data.id << endl;
            cout << "姓名：" << p->data.name << endl;
            cout << "性别：" << p->data.gender << endl;
            cout << "年龄：" << p->data.age << endl;
            cout << "专业：" << p->data.major << endl;
            cout << "班级：" << p->data.cls << endl;
            cout << "成绩：" << p->data.score << endl << endl;
            p = p->next;
        }
    }
};

//菜单类
class Menu{
public:
    //显示菜单
    static void show(){
        cout << "**********学生信息管理系统**********" << endl;
        cout << "1.添加学生信息" << endl;
        cout << "2.删除学生信息" << endl;
        cout << "3.修改学生信息" << endl;
        cout << "4.查找学生信息" << endl;
        cout << "5.显示学生信息" << endl;
        cout << "0.退出系统" << endl;
        cout << "************************************" << endl;
    }

    //获取菜单选项
    static int getOption(){
        int option;
        cout << "请选择操作：";
        cin >> option;
        return option;
    }

    //获取学生信息
    static Student getStudent(){
        Student student;
        cout << "请输入学生信息：" << endl;
        cout << "学号：";
        cin >> student.id;
        cout << "姓名：";
        cin >> student.name;
        cout << "性别：";
        cin >> student.gender;
        cout << "年龄：";
        cin >> student.age;
        cout << "专业：";
        cin >> student.major;
        cout << "班级：";
        cin >> student.cls;
        cout << "成绩：";
        cin >> student.score;
        return student;
    }

    //获取学号
    static string getId(){
        string id;
        cout << "请输入学号：";
        cin >> id;
        return id;
    }

    //显示学生信息
    static void displayStudent(Student* student){
        if(student == NULL){
            cout << "未找到该学生！" << endl;
            return;
        }
        cout << "学号：" << student->id << endl;
        cout << "姓名：" << student->name << endl;
        cout << "性别：" << student->gender << endl;
        cout << "年龄：" << student->age << endl;
        cout << "专业：" << student->major << endl;
        cout << "班级：" << student->cls << endl;
        cout << "成绩：" << student->score << endl << endl;
    }
};

int main(){
    StudentList list;
    while(true){
        Menu::show();
        int option = Menu::getOption();
        switch(option){
            //退出系统
            case 0:
                return 0;
            //添加学生信息
            case 1:
                list.addStudent(Menu::getStudent());
                cout << "添加成功！" << endl;
                break;
            //删除学生信息
            case 2:
                list.deleteStudent(Menu::getId());
                cout << "删除成功！" << endl;
                break;
            //修改学生信息
            case 3:
                {
                    string id = Menu::getId();
                    Student* student = list.findStudent(id);
                    if(student == NULL){
                        cout << "未找到该学生！" << endl;
                        break;
                    }
                    Student data = Menu::getStudent();
                    list.modifyStudent(id, data);
                    cout << "修改成功！" << endl;
                }
                break;
            //查找学生信息
            case 4:
                {
                    Student* student = list.findStudent(Menu::getId());
                    Menu::displayStudent(student);
                }
                break;
            //显示学生信息
            case 5:
                list.display();
                break;
            //非法操作
            default:
                cout << "非法操作！" << endl;
                break;
        }
    }
    return 0;
}

这个程序使用了链表来存储学生信息，并提供了菜单系统来操作学生信息。你可以按照菜单提示进行相应的操作。