用python写学生管理系统，列出代码

以下是一个基本的学生管理系统的Python代码示例：

class Student:
    def __init__(self, name, age, grade):
        self.name = name
        self.age = age
        self.grade = grade

class School:
    def __init__(self):
        self.students = []

    def add_student(self, student):
        self.students.append(student)

    def remove_student(self, name):
        for student in self.students:
            if student.name == name:
                self.students.remove(student)
                return True
        return False

    def get_student(self, name):
        for student in self.students:
            if student.name == name:
                return student
        return None

    def get_all_students(self):
        return self.students

def main():
    school = School()

    while True:
        print("1. Add Student")
        print("2. Remove Student")
        print("3. Get Student")
        print("4. Get All Students")
        print("5. Quit")

        choice = int(input("Enter your choice: "))

        if choice == 1:
            name = input("Enter student name: ")
            age = int(input("Enter student age: "))
            grade = int(input("Enter student grade: "))
            student = Student(name, age, grade)
            school.add_student(student)

        elif choice == 2:
            name = input("Enter student name: ")
            result = school.remove_student(name)
            if result:
                print("Student removed successfully")
            else:
                print("Student not found")

        elif choice == 3:
            name = input("Enter student name: ")
            student = school.get_student(name)
            if student:
                print("Name: ", student.name)
                print("Age: ", student.age)
                print("Grade: ", student.grade)
            else:
                print("Student not found")

        elif choice == 4:
            students = school.get_all_students()
            for student in students:
                print("Name: ", student.name)
                print("Age: ", student.age)
                print("Grade: ", student.grade)

        elif choice == 5:
            break

        else:
            print("Invalid choice")

if __name__ == '__main__':
    main()

这个学生管理系统使用了两个类：Student和School。Student类用于创建学生对象，School类用于管理学生。在主函数中，我们使用while循环来显示菜单选项，并根据用户的选择执行不同的操作。用户可以添加、删除、获取单个学生或获取所有学生的详细信息。