python: object 专有方法

"""
StudentScoreInfo.py
学生成绩类
date 2023-06-16
edit: Geovin Du,geovindu, 涂聚文
ide:  PyCharm 2023.1 python 11
"""
import datetime
import sys
import os

class StudentScore(object):
    """
    学生成绩类
    """



    def __init__(self,ScoreId:int,StudentId:int,CourseId:int,Score:float):
        """
        构造函数（方法）
        :param ScoreId: ID
        :param StudentId:学生ID
        :param CourseId:课程ID
        :param Score:成绩ID
        """
        self._StudentId = StudentId
        self._CourseId = CourseId
        self._Score = Score
        self._ScoreId = ScoreId

    def __init__(self):
        """
        必须写后
        """
        self._StudentId = 0
        self._CourseId = 0
        self._Score = 0
        self._ScoreId = 0
    '''
    def __del__(self):
        """

        :return:
        """
        print(f"{self._StudentId}")
    '''
    def setStudentId(self,StudentId):
        """

        :param StudentId:
        :return:
        """
        self._StudentId=StudentId

    def getStudentId(self):
        """

        :return:
        """
        return self._StudentId

    def setCourseId(self,CourseId):
        """

        :param CourseId:
        :return:
        """
        self._CourseId=CourseId

    def getCourseId(self):
        """

        :return:
        """
        return self._CourseId

    def setScore(self,Score):
        """

        :param Score:
        :return:
        """
        self._Score=Score

    def getScore(self):
        """

        :return:
        """
        return self._Score

    def setScoreId(self,ScoreId):
        """

        :param ScoreId:
        :return:
        """
        self._ScoreId=ScoreId

    def getScoreId(self):
        """

        :return:
        """
        return  self._ScoreId

    def __str__(self):
        """

        :return:
        """
        return  f"{self._ScoreId},{self._StudentId},{self._Score},{self._CourseId}"

    def __iter__(self):
        """

        :return:
        """
        return self

    def __next__(self):
        """

        :return:
        """
        self._ScoreId, self._StudentId, self._CourseId, self._Score = self._ScoreId, self._StudentId, self._CourseId, self._Score
        return self._ScoreId,self._StudentId,self._CourseId,self._Score

    def __getitem__(self,n):
        """

        :param n:
        :return:
        """
        for x in range(n):
            self._ScoreId, self._StudentId, self._CourseId, self._Score=self._ScoreId,self._StudentId,self._CourseId,self._Score
        return self._ScoreId, self._StudentId, self._CourseId, self._Score

    def __getattr__(self,name):
        """

        :param name:
        :return:
        """
        if name=="ScoreId":
            return self._ScoreId

        if name=="StudentId":
            return self._StudentId

        if name=="CourseId":
            return  self._CourseId

        if name=="Score":
            return self._Score

    def __ceil__(self):
        """

        :return:
        """
        #return f"{self._ScoreId},{self._StudentId},{self._CourseId},{self._Score}"
        return (self._ScoreId,self._StudentId,self._CourseId,self._Score)

调用：

    stuscroe=Model.StudentScoreInfo.StudentScore()
    stuscroe.setStudentId(1)
    stuscroe.setScore(80)
    stuscroe.setScoreId(5)
    stuscroe.setCourseId(2)

    print(stuscroe.Score)