编写一个简单的C++语言教务管理系统的代码

以下是一个简单的C++语言教务管理系统的代码示例：

#include <iostream>
using namespace std;

// 定义学生结构体
struct Student {
    string name;
    int age;
    string gender;
    string major;
    float score;
};

// 定义教务管理系统类
class EduSystem {
private:
    Student students[100];  // 最多存储100个学生信息
    int count = 0;  // 学生数量
public:
    void addStudent(Student student) {
        if (count < 100) {
            students[count++] = student;
            cout << "添加学生成功！" << endl;
        } else {
            cout << "学生数量已达到上限，无法添加！" << endl;
        }
    }

    void deleteStudent(string name) {
        bool found = false;
        for (int i = 0; i < count; i++) {
            if (students[i].name == name) {
                found = true;
                for (int j = i; j < count - 1; j++) {
                    students[j] = students[j + 1];
                }
                count--;
                cout << "删除学生成功！" << endl;
                break;
            }
        }
        if (!found) {
            cout << "未找到该学生！" << endl;
        }
    }

    void searchStudent(string name) {
        bool found = false;
        for (int i = 0; i < count; i++) {
            if (students[i].name == name) {
                found = true;
                cout << "姓名：" << students[i].name << endl;
                cout << "年龄：" << students[i].age << endl;
                cout << "性别：" << students[i].gender << endl;
                cout << "专业：" << students[i].major << endl;
                cout << "成绩：" << students[i].score << endl;
                break;
            }
        }
        if (!found) {
            cout << "未找到该学生！" << endl;
        }
    }

    void displayAll() {
        if (count == 0) {
            cout << "没有学生信息！" << endl;
        } else {
            for (int i = 0; i < count; i++) {
                cout << "姓名：" << students[i].name << endl;
                cout << "年龄：" << students[i].age << endl;
                cout << "性别：" << students[i].gender << endl;
                cout << "专业：" << students[i].major << endl;
                cout << "成绩：" << students[i].score << endl;
                cout << endl;
            }
        }
    }
};

int main() {
    EduSystem eduSystem;
    while (true) {
        cout << "请选择操作：" << endl;
        cout << "1. 添加学生" << endl;
        cout << "2. 删除学生" << endl;
        cout << "3. 查询学生" << endl;
        cout << "4. 显示全部学生" << endl;
        cout << "5. 退出" << endl;
        int choice;
        cin >> choice;
        switch (choice) {
            case 1: {
                Student student;
                cout << "请输入姓名、年龄、性别、专业和成绩（以空格分隔）：" << endl;
                cin >> student.name >> student.age >> student.gender >> student.major >> student.score;
                eduSystem.addStudent(student);
                break;
            }
            case 2: {
                string name;
                cout << "请输入要删除的学生姓名：" << endl;
                cin >> name;
                eduSystem.deleteStudent(name);
                break;
            }
            case 3: {
                string name;
                cout << "请输入要查询的学生姓名：" << endl;
                cin >> name;
                eduSystem.searchStudent(name);
                break;
            }
            case 4:
                eduSystem.displayAll();
                break;
            case 5:
                return 0;
            default:
                cout << "输入错误，请重新输入！" << endl;
        }
    }
}

该教务管理系统实现了添加学生、删除学生、查询学生和显示全部学生等功能。用户可以通过控制台输入指令来进行操作。其中，学生信息使用结构体存储，教务管理系统使用类来实现。