c++学生通讯录管理系统

以下是一个简单的C++学生通讯录管理系统的示例：

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

using namespace std;

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

void addStudent(vector<Student>& students) {
    Student student;
    cout << "请输入学生姓名：";
    cin >> student.name;
    cout << "请输入学生年龄：";
    cin >> student.age;
    cout << "请输入学生电话：";
    cin >> student.phone;
    students.push_back(student);
    cout << "添加成功！" << endl;
}

void displayStudents(const vector<Student>& students) {
    if (students.empty()) {
        cout << "通讯录为空！" << endl;
        return;
    }
    cout << "学生列表：" << endl;
    for (const auto& student : students) {
        cout << "姓名：" << student.name << "，年龄：" << student.age << "，电话：" << student.phone << endl;
    }
}

int main() {
    vector<Student> students;
    int choice;
    while (true) {
        cout << "请选择操作：" << endl;
        cout << "1. 添加学生" << endl;
        cout << "2. 显示学生列表" << endl;
        cout << "0. 退出" << endl;
        cin >> choice;
        switch (choice) {
            case 1:
                addStudent(students);
                break;
            case 2:
                displayStudents(students);
                break;
            case 0:
                cout << "程序已退出！" << endl;
                return 0;
            default:
                cout << "无效的选择！" << endl;
                break;
        }
    }
}