python学生管理器_完成数据模型类studentmodel

#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
学生管理系统
项目计划：
1.完成数据模型类StudentModel
2.完成逻辑控制类StudentManagerContrller
3.完成数据:学生列表__stu__list
4.行为:获取列表stu__list
5。添加学生 add_student
"""


class StudentModel:
    """
    学生模型
    """

    def __init__(self, name="", age=0, score=0, id=0):
        """

        :param id: 学生对象唯一标识
        :param name: 姓名
        :param age:
        :param score:
        """

        self.id = id
        self.name = name
        self.age = age
        self.score = score


class StudentManagerContrller:
    # 类变量，用于初始化编号
    __init = 0

    def __init__(self):

        self.__stu__list = []

    @property
    def stu__list(self):

        return self.__stu__list

    def add_student(self, stu_info):

        stu_info.id = self.__generate_id()

        self.__stu__list.append(stu_info)

    def __generate_id(self):
        """
        id自增一方法
        :return:
        """
        StudentManagerContrller.__init += 1
        return StudentManagerContrller.__init

    def remove_student(self, stu_id):
        """
        根据id删除学生
        :param stu_id:
        :return:
        """
        for item in self.__stu__list:
            if item.id == stu_id:
                self.__stu__list.remove(item)
                return True
        return False

    def update_student(self, stu_info):
        """

        根据stu_info.id修改学生信息

        """
        for item in self.__stu__list:
            if item.id == stu_info.id:
                item.name = stu_info.name
                item.age = stu_info.age
                item.sccore = stu_info.score

                return True
        return False
    def order_by_score(self):
        """
        对学生数据进行排序，前面的跟后面比在交换
        :return:
        """
        for r in range(len(self.__stu__list)-1):
            for c in range(r+1,len(self.__stu__list)):
                if self.__stu__list[r].score>self.__stu__list[c].score:
                    self.__stu__list[r].score,self.__stu__list[c].score=self.__stu__list[c].score,self.__stu__list[r].score


class StudentManagerView:
    """
    学生管理器视图
    """

    def __init__(self):
        self.__manager = StudentManagerContrller()

    def __display_memu(self):
        print("1)添加学生")
        print("2)显示学生")
        print("3)删除学生")
        print("4)修改学生")
        print("5)按照成绩升序学生")

    def __select_memu(self):
        item = input("请输入选择:")
        if item == "1":
            self.__input_stu()
        elif item == "2":
            self.__outprint(self.__manager.stu__list)
        elif item == "3":
            self.__del_stu()
        elif item == "4":
            self.__modify_student()
        elif item == "5":
            self.__ascend_score()

    def __input_stu(self):
        name = input("请输入姓名:")
        age = input("请输入年龄:")
        score = input("请输入分数:")
        stu = StudentModel(name, age, score)
        self.__manager.add_student(stu)

    def __outprint(self, stu_list):
        for item in stu_list:
            print(item.id, item.name, item.age, item.score)

    def __del_stu(self):
        id = int(input("请输入id号删除:"))
        self.__manager.remove_student(id)
    def __modify_student(self):
        id=int(input("请输入需要修改的学生的编号:"))
        name = input("请输入新的学生名称:")
        age = int(input("请输入新的学生年龄:"))
        score = int(input("请输入新的学生成绩"))
        stu = StudentModel(name,age,score,id)
        if self.__manager.update_student(stu):
            print("修改成功")
        else:
            print("修改失败")
    def __ascend_score(self):
        """

        :param stu_list:
        :return:
        """
        self.__manager.order_by_score()
        self.__outprint(self.__manager.stu__list)


    def main(self):
        while True:
            self.__display_memu()
            self.__select_memu()


view = StudentManagerView()
view.main()




"""
测试代码
"""
# stu01 = StudentModel("张三",12,99)
# stu02 = StudentModel("张1",12,99)
# manager = StudentManagerContrller()
# manager.add_student(stu01)
# manager.add_student(stu02)
#
# for item in manager.stu__list:
#     print(item.name,item.id)
"""
测试修改代码
"""
# stu01 = StudentModel("张三",12,99)
# manager = StudentManagerContrller()
# manager.add_student(stu01)
# manager.update_student(StudentModel("张三",11,90,id=1))
# for item in manager.stu__list:
#      print(item.score)


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