day14-作业

• 0.定义⼀个学⽣类。有属性：姓名、年龄、成绩（语⽂，数学，英语)[每课成绩的类型为整数]
  ⽅法： a. 获取学⽣的姓名： getname() b. 获取学⽣的年龄： getage()
  c. 返回3⻔科⽬中最⾼的分数。 get_course()

class Student:
    def __init__(self,name,age,chinese_score,math_score,english_score):
        self.name = name
        self.age = age
        self.chinese_score = chinese_score
        self.math_score = math_score
        self.english_score = english_score

    def get_name(self):
        print(self.name)

    def get_age(self):
        print(self.age)

    def get_course(self):
        lists = [self.chinese_score,self.math_score,self.english_score]

        print(max(lists))


stu1 = Student('xzq',18,89,90,10)
stu1.get_name()
stu1.get_age()
stu1.get_course()

D:\千锋培训作业\第三周作业\day14-作业\venv\Scripts\python.exe D:/千锋培训作业/第三周作业/day14-作业/homework/作业0.py
xzq
18
90

Process finished with exit code 0

• 1.建⽴⼀个汽⻋类Auto，包括轮胎个数，汽⻋颜⾊，⻋身重量，速度等成员变量，并通过不同的构造⽅法创建实例。⾄少要求 汽⻋能够加速 减速 停⻋。 再定义⼀个⼩汽⻋类CarAuto 继承Auto 并添加空调、 CD等成
  员变量 覆盖加速 减速的⽅法

class Auto:
    def __init__(self,tyre='',color='',weight='',speed=''):
        self.tyre = tyre
        self.color = color
        self.weight = weight
        self.speed = speed

    def speed_up(self):
        print('汽车正在加速！')

    def speed_down(self):
        print('汽车正在减速！')

    def stop(self):
        print('汽车已停车！')


class CarAuto(Auto):
    def __init__(self,air_conditioner='',CD=''):
        super().__init__(tyre='',color='',weight='',speed='')
        self.air_conditioner = air_conditioner
        self.CD = CD

    def speed_up(self):
        print('汽车正在加速！')

    def speed_down(self):
        print('汽车正在减速！')

    def stop(self):
        print('汽车已停车！')

car1 = CarAuto(10,20)
car1.tyre = 11
print(car1.tyre)

D:\千锋培训作业\第三周作业\day14-作业\venv\Scripts\python.exe D:/千锋培训作业/第三周作业/day14-作业/homework/作业1.py
11

Process finished with exit code 0

• 2.创建⼀个名为User 的类，其中包含属性firstname 和lastname ，还有⽤户简介通常会存储的其他⼏个属性。在类User 中定义⼀个名 为describeuser() 的⽅法，它打印⽤户信息摘要;再定义⼀个名为greetuser() 的⽅法，它向⽤户发出个性化的问候。
  管理员是⼀种特殊的⽤户。编写⼀个名为Admin 的类，让它继承User类。添加⼀个名为privileges 的属性，⽤于存储⼀个由字符串(如"can add post"、 "can delete post"、 "can ban user"等)组成的列表。编写⼀个名为
  show_privileges()的⽅法，它显示管理员的权限。创建⼀个Admin 实例，并调⽤这个⽅法。

class User:
    def __init__(self,firstname,lastname):
        self.firstname = firstname
        self.lastname = lastname

    def describeuser(self):
        print('用户信息：%s %s'% (self.firstname,self.lastname))


    def greetuser(self):
        print('%s你好啊'% self.lastname)

class Admin(User):
    def __init__(self,privileges=[]):
        super().__init__(firstname='',lastname='')
        self.privileges = []
    def show(self):
        self.__show_privileges()
    @classmethod
    def __show_privileges(cls):
        print('管理员，你好')

ad1 = Admin('i can do it')
ad1.show()


D:\千锋培训作业\第三周作业\day14-作业\venv\Scripts\python.exe D:/千锋培训作业/第三周作业/day14-作业/homework/作业2.py
管理员，你好

Process finished with exit code 0

• 3.创建⼀个Person类，添加⼀个类字段⽤来统计Perosn类的对象的个数

class Person:
    number = 0
    def __init__(self):
        Person.number += 1

    @classmethod
    def numbers(cls):
        return cls.number

a =Person()
b =Person()
c =Person()
print(Person.numbers())


D:\千锋培训作业\第三周作业\day14-作业\venv\Scripts\python.exe D:/千锋培训作业/第三周作业/day14-作业/homework/作业3.py
3

Process finished with exit code 0

• (尝试)5.写⼀个类，其功能是： 1.解析指定的歌词⽂件的内容 2.按时间显示歌词 提示：歌词⽂件的内容⼀般
  是按下⾯的格式进⾏存储的。歌词前⾯对应的是时间，在对应的时间点可以显示对应的歌词
  [00:00.20]蓝莲花
  [00:00.80]没有什么能够阻挡
  [00:06.53]你对⾃由地向往
  [00:11.59]天⻢⾏空的⽣涯
  [00:16.53]你的⼼了⽆牵挂
  [02:11.27][01:50.22][00:21.95]穿过幽暗地岁⽉
  [02:16.51][01:55.46][00:26.83]也曾感到彷徨
  [02:21.81][02:00.60][00:32.30]当你低头地瞬间
  [02:26.79][02:05.72][00:37.16]才发觉脚下的路
  [02:32.17][00:42.69]⼼中那⾃由地世界
  [02:37.20][00:47.58]如此的清澈⾼远
  [02:42.32][00:52.72]盛开着永不凋零
  [02:47.83][00:57.47]蓝莲花

import re

class Lyrics:
    """歌词类"""
    def __init__(self):
        self.lrc = ''
        self._time = 0
    @property
    def time(self):
        return self._time
    @time.setter
    def time(self,time):
        fen = float(time[:2])
        miao = float(time[3:])
        self._time = fen*60 + miao

    def __lt__(self, other):
        return self._time < other.time

    #自定义类的对象的打印
    def __str__(self):
        return str(self._time) + ':' + self.lrc

class AnalysisLyrcs:
    """解析歌词"""
    def __init__(self,file_path):
        self.all_lrc = []
        self.file_path = file_path

    def __anlysis_lyrics(self):
        """解析歌词"""
        with open(self.file_path,'r',encoding='utf-8')as f:
            #一行一行的读文件中的内容
            line = f.readline()
            while line:
                #对当前读的一行的内容进行操作
                self.__operate_line(line)
                line = f.readline()
        # 在这人已经将文件中所有的内容都读完了，并且转换成了歌词对象，保存到all_lrc中了
        # 排序
        self.all_lrc.sort(reverse=True)

        # for lrc in self.all_lrc:
        #     print(lrc)

    def __operate_line(self,line):
        # print(line)
        # [00:00.20]蓝莲花

        #切割
        lines = line.split(']')
        # ['00:00.20','蓝莲花']
        #取词
        lrc = lines[-1]
        #遍历所有的时间
        for index in range(len(lines)-1):
            # print('%s:%s'%(lrc , lines[index]))
            # 创建歌词对象
            lyrics = Lyrics()
            # 设置歌词和时间属性
            lyrics.lrc = lrc
            lyrics.time = lines[index][1:]
            # 00:00.20
            # 保存歌词对象
            self.all_lrc.append(lyrics)


    def show_lrc(self,time):
        if not self.all_lrc:
            self.__anlysis_lyrics()
        self.__anlysis_lyrics()
        for item in self.all_lrc:
            if item.time <time:
                return item.lrc


# lan_lian_hua = AnalysisLyrcs('./蓝莲花')
# lan_lian_hua.anlysis_lyrics()
lan_lian_hua = AnalysisLyrcs('./蓝莲花')
# print(lan_lian_hua.show_lrc(100))
# print(lan_lian_hua.show_lrc(15))

import time
time1 = 0
while True:
    time.sleep(1)
    time1 += 1
    print(lan_lian_hua.show_lrc(time1))