public class Main {
    public static void main(String[] args) {
        // 实例化两个 Student 对象
        Student stu1 = new Student(2026001, "张三", 90.5);
        Student stu2 = new Student(2026002, "李四", 88.0);

        // 调用 study() 方法
        stu1.study();
        stu2.study();
    }
}