// 主类测试
public class PersonSystemTest {
    public static void main(String[] args) {
        PersonManager manager = new PersonManager();

        // 测试添加学生
        Student student = new Student("P001", "张三", 20, "S2023001", "计算机科学与技术");
        manager.addPerson(student);

        // 测试添加老师
        Teacher teacher = new Teacher("P002", "李四", 35, "T2020001", "计算机学院");
        manager.addPerson(teacher);

        // 展示所有信息
        manager.showAllPersons();
    }
}