用C++写一个小型管理信息系统

好的，下面是一个简单的管理信息系统的代码示例：

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

struct Student {
    string name;
    int age;
    float score;
};

void printStudent(const Student& student) {
    cout << "Name: " << student.name << ", Age: " << student.age << ", Score: " << student.score << endl;
}

void addStudent(vector<Student>& students) {
    Student student;
    cout << "Input name: ";
    cin >> student.name;
    cout << "Input age: ";
    cin >> student.age;
    cout << "Input score: ";
    cin >> student.score;
    students.push_back(student);
    cout << "Add student successful!" << endl;
}

void deleteStudent(vector<Student>& students) {
    string name;
    cout << "Input name to delete: ";
    cin >> name;
    auto it = remove_if(students.begin(), students.end(), [&](const Student& student) {
        return student.name == name;
    });
    if (it != students.end()) {
        students.erase(it, students.end());
        cout << "Delete student successful!" << endl;
    } else {
        cout << "Student not found!" << endl;
    }
}

void printAllStudent(const vector<Student>& students) {
    for (const auto& student : students) {
        printStudent(student);
    }
}

void printMenu() {
    cout << "1. Add student" << endl;
    cout << "2. Delete student" << endl;
    cout << "3. Print all students" << endl;
    cout << "4. Exit" << endl;
    cout << "Please input your choice: ";
}

int main() {
    vector<Student> students;
    while (true) {
        printMenu();
        int choice;
        cin >> choice;
        switch (choice) {
        case 1:
            addStudent(students);
            break;
        case 2:
            deleteStudent(students);
            break;
        case 3:
            printAllStudent(students);
            break;
        case 4:
            return 0;
        default:
            cout << "Invalid choice!" << endl;
            break;
        }
    }
    return 0;
}

这个小型管理信息系统可以添加、删除和打印所有学生的信息。其中，一个学生的信息包括姓名、年龄和分数。代码中使用了 STL 中的 vector 容器来存储学生信息，并使用了 lambda 表达式和算法函数来删除指定姓名的学生。你可以根据自己的需要进行修改和扩展。