用Dev C++写一个学生宿舍管理系统APP

好的，下面是一个简单的学生宿舍管理系统APP的代码，使用Dev C++编写：

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

using namespace std;

class Student {
private:
    string name;
    int age;
    string major;
    string dormitory;
public:
    Student(string n, int a, string m, string d) {
        name = n;
        age = a;
        major = m;
        dormitory = d;
    }
    void display() {
        cout << "姓名：" << name << endl;
        cout << "年龄：" << age << endl;
        cout << "专业：" << major << endl;
        cout << "宿舍：" << dormitory << endl;
    }
    string getName() {
        return name;
    }
};

class Dormitory {
private:
    string id;
    int capacity;
    vector<Student*> students;
public:
    Dormitory(string i, int c) {
        id = i;
        capacity = c;
    }
    void addStudent(Student* s) {
        if (students.size() < capacity) {
            students.push_back(s);
            cout << s->getName() << "成功入住" << id << "宿舍" << endl;
        }
        else {
            cout << id << "宿舍已满，无法入住" << endl;
        }
    }
    void displayStudents() {
        cout << id << "宿舍的居民：" << endl;
        for (int i = 0; i < students.size(); i++) {
            students[i]->display();
            cout << endl;
        }
    }
};

class DormitoryManager {
private:
    vector<Dormitory*> dormitories;
public:
    void addDormitory(Dormitory* d) {
        dormitories.push_back(d);
        cout << "成功添加宿舍：" << d->id << endl;
    }
    void addStudentToDormitory(Student* s, Dormitory* d) {
        for (int i = 0; i < dormitories.size(); i++) {
            if (dormitories[i] == d) {
                dormitories[i]->addStudent(s);
                return;
            }
        }
        cout << "找不到该宿舍" << endl;
    }
    void displayAllDormitories() {
        cout << "所有宿舍信息：" << endl;
        for (int i = 0; i < dormitories.size(); i++) {
            cout << "宿舍号：" << dormitories[i]->id << "，容纳人数：" << dormitories[i]->capacity << endl;
            dormitories[i]->displayStudents();
            cout << endl;
        }
    }
};

int main() {
    DormitoryManager dm;
    Dormitory* d1 = new Dormitory("A101", 3);
    Dormitory* d2 = new Dormitory("B102", 2);
    dm.addDormitory(d1);
    dm.addDormitory(d2);
    Student* s1 = new Student("张三", 18, "计算机科学与技术", "A101");
    Student* s2 = new Student("李四", 19, "软件工程", "A101");
    Student* s3 = new Student("王五", 20, "信息安全", "A101");
    Student* s4 = new Student("赵六", 21, "网络工程", "B102");
    dm.addStudentToDormitory(s1, d1);
    dm.addStudentToDormitory(s2, d1);
    dm.addStudentToDormitory(s3, d1);
    dm.addStudentToDormitory(s4, d2);
    dm.displayAllDormitories();
    return 0;
}

这个系统包含了三个类：`Student`，`Dormitory`和`DormitoryManager`。`Student`表示一个学生的信息，包括姓名，年龄，专业和宿舍号；`Dormitory`表示一个宿舍的信息，包括宿舍号，容纳人数和居民列表；`DormitoryManager`是一个管理器类，负责管理所有的宿舍和学生，提供添加宿舍、添加学生到宿舍和显示所有宿舍信息等功能。在主函数中，我们创建了两个宿舍对象，四个学生对象，并将学生分配到宿舍中，最后显示所有宿舍的信息。