- 建立一個汽車類Auto，包括輪胎個數(shù)，汽車顏色，車身重量，速度等屬性，并通過不同的構(gòu)造方法創(chuàng)建實例。至少要求 汽車能夠加速 減速 停車。 再定義一個小汽車類CarAuto 繼承Auto 并添加空調(diào)、CD屬性，并且重新實現(xiàn)方法覆蓋加速、減速的方法
"""______lxh______"""
class Auto: # init方法
def __init__(self, color, weight, speed, tyr_num):
self.tyr_num = tyr_num
self.color = color
self.weight = weight
self.speed = speed
def speed_up(self):
self.speed += 3
print('速度增加了3碼! Speed:', self.speed)
def speed_down(self):
if self.speed >= 3:
self.speed -= 3
print('減速了3碼! Speed:', self.speed)
elif self.speed:
self.speed = 0
print('車速太低, 車停了!')
else:
print('汽車尚未啟動!')
def park(self):
if self.speed:
while True:
if self.speed >= 8:
self.speed -= 8
print('正在剎車, Speed:', self.speed)
else:
self.speed = 0
print('車停了!')
break
else:
print('車已經(jīng)停了!')
class Auto1: # 構(gòu)造函數(shù)
tyr_num = 4
color = 'black'
weight = '1t'
speed = 35
def speed_up(self):
self.speed += 3
print('速度增加了3碼! Speed:', self.speed)
def speed_down(self):
if self.speed >= 3:
self.speed -= 3
print('減速了3碼! Speed:', self.speed)
elif self.speed:
self.speed = 0
print('車速太低, 車停了!')
elif self.speed:
self.speed = 0
else:
print('汽車尚未啟動!')
def park(self):
if self.speed:
while True:
if self.speed >= 8:
self.speed -= 8
print('正在剎車, Speed:', self.speed)
else:
self.speed = 0
print('車停了!')
break
else:
print('車已經(jīng)停了!')
class CarAuto(Auto): # 繼承
def __init__(self, color, weight, speed, tyr_num, condition, cd):
super().__init__(color, weight, speed, tyr_num)
self.condition = condition
self.cd = cd
self.tyr_num = 4
def speed_up(self):
self.speed += 5
print('速度增加了5碼! Speed:', self.speed)
def speed_down(self):
if self.speed >= 5:
self.speed -= 5
print('減速了5碼! Speed:', self.speed)
elif self.speed:
self.speed = 0
print('車速太低, 車停了!')
elif self.speed:
self.speed = 0
def play_cond(self):
if self.condition == 'on':
self.condition = 'off'
print('關(guān)閉空調(diào)!')
else:
self.condition = 'on'
print('打開空調(diào)!')
def play_cd(self):
if self.cd == 'on':
self.cd = 'off'
print('關(guān)閉音樂!')
else:
self.cd = 'on'
print('打開音樂!')
car1 = Auto('black', '1t', 30, 4)
car2 = Auto1()
car1.speed_up()
car1.speed_down()
car1.park()
print(car2.color, car2.speed, car2.weight, car2.tyr_num)
car2.speed_up()
car2.speed_down()
car2.park()
car3 = CarAuto('black', '1t', 39, 4, 'on', 'on')
print(car3.__dict__)
car3.speed_up()
car3.speed_down()
car3.play_cd()
car3.play_cd()
car3.play_cond()
car3.play_cond()
- 創(chuàng)建一個Person類，添加一個類字段用來統(tǒng)計Perosn類的對象的個數(shù)
"""______lxh______"""
class Person:
_num = 0
def __init__(self, name, age, sex):
self.name = name
self.age = age
self._sex = sex
Person._num += 1
print('有%d個對象!' % Person._num)
def show(self):
print(self.name, self.age, self._sex)
@property
def sex(self):
print('性別被訪問!')
return self.sex
@sex.setter
def sex(self, value):
if value:
raise Readonly
class Readonly(Exception):
def __str__(self):
return 'Readonly'
p1 = Person('小明', 20, '男')
p2 = Person('小明', 20, '男')
p3 = Person('小明', 20, '男')
-
創(chuàng)建一個動物類，擁有屬性：性別、年齡、顏色、類型 ，
要求打印這個類的對象的時候以'/XXX的對象: 性別-? 年齡-? 顏色-? 類型-?/' 的形式來打印
"""______lxh______"""
class Animal:
def __init__(self, sex, age, color, breed):
self.sex = sex
self.age = age
self.color = color
self.breed = breed
def __str__(self):
return '/ ' + a1.__class__.__name__ + '的對象: 性別-' + self.sex + ', 年齡-' + str(self.age) + ', 顏色-' + self.color + ', 類型-' + self.breed + ' /'
a1 = Animal('母', 3, 'yellow', '哈奇士')
print(a1)
- 寫一個圓類， 擁有屬性半徑、面積和周長；要求獲取面積和周長的時候的時候可以根據(jù)半徑的值把對應(yīng)的值取到。但是給面積和周長賦值的時候，程序直接崩潰，并且提示改屬性不能賦值
"""______lxh______"""
class Circle:
pi = 3.14
def __init__(self, radius: int):
self.radius = radius
self._area = self.pi * radius ** 2
self._girth = 2 * self.pi * self.radius
@property
def area(self):
return self._area
@area.setter
def area(self, value):
if value:
raise Readonly
@property
def girth(self):
return self._girth
@girth.setter
def girth(self, value):
if value:
raise Readonly
class Readonly(Exception):
def __str__(self):
return 'Readonly123'
c1 = Circle(5)
print(c1.area)
print(c1.girth)
# c1.area = 20
- 寫一個撲克類， 要求擁有發(fā)牌和洗牌的功能(具體的屬性和其他功能自己根據(jù)實際情況發(fā)揮)
"""______lxh______"""
from random import shuffle
class Poker:
_num = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K']
_color = ['紅桃', '黑桃', '方塊', '梅花']
_Joker = 'JOKER'
_joker = 'joker'
_pokers = []
for n in _color:
for c in _num:
_pokers.append(c + n)
_pokers.append(_Joker)
_pokers.append(_joker)
shuffle(_pokers)
@classmethod
def deal(cls):
user1 = cls._pokers[:17]
user2 = cls._pokers[17:34]
user3 = cls._pokers[34:51]
print('User1', user1)
print('User2', user2)
print('User3', user3)
print('底牌:', cls._pokers[51:])
@classmethod
def riffle(cls):
shuffle(cls._pokers)
print(cls._pokers)
def main():
p1 = Poker
p1.deal()
p1.riffle()
p1.deal()
if __name__ == '__main__':
main()
- (嘗試)寫一個類，其功能是：1.解析指定的歌詞文件的內(nèi)容 2.按時間顯示歌詞 提示：歌詞文件的內(nèi)容一般是按下面的格式進行存儲的。歌詞前面對應(yīng)的是時間，在對應(yīng)的時間點可以顯示對應(yīng)的歌詞
"""______lxh______"""
from time import time, sleep
import pygame
class Music:
def __init__(self, lrc):
self._lrc = lrc/
self._time = 0
self._old_time = 0
def auto_lrc(self): # 自動播放音樂打印歌詞
pygame.mixer.init()
pygame.mixer.music.load('files/Way Back Into Love.mp3') # 加載音樂
pygame.mixer.music.play() # 播放音樂
self._time = time() # 獲得開始播放的時間戳
for tim in self._lrc:
while round(time() - self._time, 2) < tim: # 根據(jù)播放時間顯示歌詞
continue
else:
print(self._lrc[tim])
sleep(12) # 最后一句還有一段時間
pygame.mixer.music.stop() # 停止播放音樂
def show_lrc(self): # 打印指定時間的歌詞
second = input('請輸入時間(秒):')
sec = round(float(second), 2)
for tim in self._lrc:
if self._old_time < sec < tim: # 判斷時間區(qū)間打印歌詞
print(self._lrc[self._old_time])
self._old_time = 0
return
self._old_time = tim
def main():
lrc = {}
path = 'files/Way.lrc'
style = 'GBK'
with open(path, encoding=style) as f:
content = f.read()
content = content.splitlines()
content = [x for x in content if x != '']
for lin in content:
if lin[3] != ':' or lin[6] != '.': # 判斷是否是說明文檔
continue
li = lin.split(']')
for t in li[:-1]:
tim = t.split(':') # 分割時間
lrc[round(float(tim[0][1:]) * 60 + float(tim[1]), 2)] = li[-1] # round(num, 2) 保留小數(shù)點后兩位 存秒數(shù)
lrc = dict(sorted(lrc.items(), key=lambda k: k[0]))
play = Music(lrc) # 創(chuàng)建對象
play.auto_lrc() # 播放音樂
# play.show_lrc() # 打印指定歌詞
if __name__ == '__main__':
main()
