c++学生信息管理系统简易版

以下是一个简易版的C++学生信息管理系统的示例：

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

using namespace std;

// 学生类
class Student {
public:
    string studentID;
    string name;
    string className;
    int english1;
    int english2;
    int english3;

    // 构造函数
    Student(string id, string n, string cn, int e1, int e2, int e3) {
        studentID = id;
        name = n;
        className = cn;
        english1 = e1;
        english2 = e2;
        english3 = e3;
    }
};

// 学生信息管理系统类
class StudentManagementSystem {
private:
    vector<Student> students;

public:
    // 添加学生信息
    void addStudent(Student student) {
        students.push_back(student);
    }

    // 显示所有学生信息
    void displayStudents() {
        for (int i = 0; i < students.size(); i++) {
            cout << "学号: " << students[i].studentID << endl;
            cout << "姓名: " << students[i].name << endl;
            cout << "班级: " << students[i].className << endl;
            cout << "大学英语一成绩: " << students[i].english1 << endl;
            cout << "大学英语二成绩: " << students[i].english2 << endl;
            cout << "大学英语三成绩: " << students[i].english3 << endl;
            cout << endl;
        }
    }

    // 查询学生信息
    void searchStudent(string studentID) {
        for (int i = 0; i < students.size(); i++) {
            if (students[i].studentID == studentID) {
                cout << "学号: " << students[i].studentID << endl;
                cout << "姓名: " << students[i].name << endl;
                cout << "班级: " << students[i].className << endl;
                cout << "大学英语一成绩: " << students[i].english1 << endl;
                cout << "大学英语二成绩: " << students[i].english2 << endl;
                cout << "大学英语三成绩: " << students[i].english3 << endl;
                return;
            }
        }
        cout << "未找到该学生信息" << endl;
    }

    // 修改学生信息
    void modifyStudent(string studentID, string newName, string newClassName, int newEnglish1, int newEnglish2, int newEnglish3) {
        for (int i = 0; i < students.size(); i++) {
            if (students[i].studentID == studentID) {
                students[i].name = newName;
                students[i].className = newClassName;
                students[i].english1 = newEnglish1;
                students[i].english2 = newEnglish2;
                students[i].english3 = newEnglish3;
                cout << "学生信息修改成功" << endl;
                return;
            }
        }
        cout << "未找到该学生信息" << endl;
    }

    // 删除学生信息
    void deleteStudent(string studentID) {
        for (int i = 0; i < students.size(); i++) {
            if (students[i].studentID == studentID) {
                students.erase(students.begin() + i);
                cout << "学生信息删除成功" << endl;
                return;
            }
        }
        cout << "未找到该学生信息" << endl;
    }
};

int main() {
    StudentManagementSystem sms;

    // 添加学生信息
    Student student1("001", "张三", "一班", 80, 85, 90);
    sms.addStudent(student1);

    Student student2("002", "李四", "二班", 75, 88, 92);
    sms.addStudent(student2);

    // 显示所有学生信息
    sms.displayStudents();

    // 查询学生信息
    sms.searchStudent("001");

    // 修改学生信息
    sms.modifyStudent("001", "王五", "三班", 90, 92, 95);

    // 删除学生信息
    sms.deleteStudent("002");

    return 0;
}